Ejemplo n.º 1
0
Archivo: mlab.py Proyecto: j-fu/gr
def _set_viewport(kind, subplot):
    global _plt
    metric_width, metric_height, pixel_width, pixel_height = gr.inqdspsize()
    if 'figsize' in _plt.kwargs:
        horizontal_pixels_per_inch = pixel_width * 0.0254 / metric_width
        vertical_pixels_per_inch = pixel_height * 0.0254 / metric_height
        width = _plt.kwargs['figsize'][0] * horizontal_pixels_per_inch
        height = _plt.kwargs['figsize'][1] * vertical_pixels_per_inch
    else:
        width, height = _plt.kwargs['size']

    viewport = [0, 0, 0, 0]
    vp = subplot[:]
    if width > height:
        aspect_ratio = height/width
        metric_size = metric_width * width / pixel_width
        gr.setwsviewport(0, metric_size, 0, metric_size*aspect_ratio)
        gr.setwswindow(0, 1, 0, aspect_ratio)
        vp[2] *= aspect_ratio
        vp[3] *= aspect_ratio
    else:
        aspect_ratio = width/ height
        metric_size = metric_height * height / pixel_height
        gr.setwsviewport(0, metric_size * aspect_ratio, 0, metric_size)
        gr.setwswindow(0, aspect_ratio, 0, 1)
        vp[0] *= aspect_ratio
        vp[1] *= aspect_ratio
    viewport[0] = vp[0] + 0.125 * (vp[1]-vp[0])
    viewport[1] = vp[0] + 0.925 * (vp[1]-vp[0])
    viewport[2] = vp[2] + 0.125 * (vp[3]-vp[2])
    viewport[3] = vp[2] + 0.925 * (vp[3]-vp[2])

    if width > height:
        viewport[2] += (1 - (subplot[3] - subplot[2])**2) * 0.02
    if kind in ('wireframe', 'surface', 'plot3', 'scatter3'):
        viewport[1] -= 0.0525
    if kind in ('contour', 'contourf', 'surface'):
        viewport[1] -= 0.1
    gr.setviewport(*viewport)
    _plt.kwargs['viewport'] = viewport
    _plt.kwargs['vp'] = vp
    _plt.kwargs['ratio'] = aspect_ratio

    if 'backgroundcolor' in _plt.kwargs:
        gr.savestate()
        gr.selntran(0)
        gr.setfillintstyle(gr.INTSTYLE_SOLID)
        gr.setfillcolorind(_plt.kwargs['backgroundcolor'])
        if width > height:
            gr.fillrect(subplot[0], subplot[1],
                        subplot[2] * aspect_ratio, subplot[3] * aspect_ratio)
        else:
            gr.fillrect(subplot[0] * aspect_ratio, subplot[1] * aspect_ratio,
                        subplot[2], subplot[3])
        gr.selntran(1)
        gr.restorestate()
Ejemplo n.º 2
0
def _draw_legend():
    global _plt
    viewport = _plt.kwargs['viewport']
    num_labels = len(_plt.kwargs['labels'])
    location = _plt.kwargs.get('location', 1)
    gr.savestate()
    gr.selntran(0)
    gr.setscale(0)
    w = 0
    for label in _plt.kwargs['labels']:
        tbx, tby = gr.inqtextext(0, 0, label)
        w = max(w, tbx[2])

    num_lines = len(_plt.args)
    h = (num_lines + 1) * 0.03
    if location in (8, 9, 10):
        px = 0.5 * (viewport[0] + viewport[1] - w)
    elif location in (2, 3, 6):
        px = viewport[0] + 0.11
    else:
        px = viewport[1] - 0.05 - w
    if location in (5, 6, 7, 10):
        py = 0.5 * (viewport[2] + viewport[3] + h) - 0.03
    elif location in (3, 4, 8):
        py = viewport[2] + h
    else:
        py = viewport[3] - 0.06

    gr.setfillintstyle(gr.INTSTYLE_SOLID)
    gr.setfillcolorind(0)
    gr.fillrect(px - 0.08, px + w + 0.02, py + 0.03, py - 0.03 * num_lines)
    gr.setlinetype(gr.LINETYPE_SOLID)
    gr.setlinecolorind(1)
    gr.setlinewidth(1)
    gr.drawrect(px - 0.08, px + w + 0.02, py + 0.03, py - 0.03 * num_lines)
    i = 0
    gr.uselinespec(" ")
    for (x, y, z, c, spec) in _plt.args:
        gr.savestate()
        mask = gr.uselinespec(spec)
        if mask in (0, 1, 3, 4, 5):
            gr.polyline([px - 0.07, px - 0.01], [py, py])
        if mask & 2:
            gr.polymarker([px - 0.06, px - 0.02], [py, py])
        gr.restorestate()
        gr.settextalign(gr.TEXT_HALIGN_LEFT, gr.TEXT_VALIGN_HALF)
        if i < num_labels:
            gr.textext(px, py, _plt.kwargs['labels'][i])
            i += 1
        py -= 0.03
    gr.selntran(1)
    gr.restorestate()
Ejemplo n.º 3
0
def _draw_legend():
    global _plt
    viewport = _plt.kwargs['viewport']
    num_labels = len(_plt.kwargs['labels'])
    location = _plt.kwargs.get('location', 1)
    gr.savestate()
    gr.selntran(0)
    gr.setscale(0)
    w = 0
    for label in _plt.kwargs['labels']:
        tbx, tby = gr.inqtextext(0, 0, label)
        w = max(w, tbx[2])

    num_lines = len(_plt.args)
    h = (num_lines + 1) * 0.03
    if location in (8, 9, 10):
        px = 0.5 * (viewport[0] + viewport[1] - w)
    elif location in (2, 3, 6):
        px = viewport[0] + 0.11
    else:
        px = viewport[1] - 0.05 - w
    if location in (5, 6, 7, 10):
        py = 0.5 * (viewport[2] + viewport[3] + h) - 0.03
    elif location in (3, 4, 8):
        py = viewport[2] + h
    else:
        py = viewport[3] - 0.06

    gr.setfillintstyle(gr.INTSTYLE_SOLID)
    gr.setfillcolorind(0)
    gr.fillrect(px - 0.08, px + w + 0.02, py + 0.03, py - 0.03 * num_lines)
    gr.setlinetype(gr.LINETYPE_SOLID)
    gr.setlinecolorind(1)
    gr.setlinewidth(1)
    gr.drawrect(px - 0.08, px + w + 0.02, py + 0.03, py - 0.03 * num_lines)
    i = 0
    gr.uselinespec(" ")
    for (x, y, z, c, spec) in _plt.args:
        gr.savestate()
        mask = gr.uselinespec(spec)
        if mask in (0, 1, 3, 4, 5):
            gr.polyline([px - 0.07, px - 0.01], [py, py])
        if mask & 2:
            gr.polymarker([px - 0.06, px - 0.02], [py, py])
        gr.restorestate()
        gr.settextalign(gr.TEXT_HALIGN_LEFT, gr.TEXT_VALIGN_HALF)
        if i < num_labels:
            gr.textext(px, py, _plt.kwargs['labels'][i])
            i += 1
        py -= 0.03
    gr.selntran(1)
    gr.restorestate()
Ejemplo n.º 4
0
def _plot_img(I):
    global _plt

    if isinstance(I, basestring):
        width, height, data = gr.readimage(I)
        if width == 0 or height == 0:
            return
    else:
        I = np.array(I)
        width, height = I.shape
        data = np.array(1000+(1.0*I - I.min()) / I.ptp() * 255, np.int32)

    if _plt.kwargs['clear']:
        gr.clearws()

    if not _plt.kwargs['ax']:
        _set_viewport('line', _plt.kwargs['subplot'])

    viewport = _plt.kwargs['viewport']
    vp = _plt.kwargs['vp']

    if width * (viewport[3] - viewport[2]) < height * (viewport[1] - viewport[0]):
        w = width / height * (viewport[3] - viewport[2])
        x_min = max(0.5 * (viewport[0] + viewport[1] - w), viewport[0])
        x_max = min(0.5 * (viewport[0] + viewport[1] + w), viewport[1])
        y_min = viewport[2]
        y_max = viewport[3]
    else:
        h = height / width * (viewport[1] - viewport[0])
        x_min = viewport[0]
        x_max = viewport[1]
        y_min = max(0.5 * (viewport[3] + viewport[2] - h), viewport[2])
        y_max = min(0.5 * (viewport[3] + viewport[2] + h), viewport[3])

    if 'cmap' in _plt.kwargs:
        warnings.warn('The parameter "cmap" has been replaced by "colormap". The value of "cmap" will be ignored.', stacklevel=3)
    colormap = _plt.kwargs.get('colormap', gr.COLORMAP_VIRIDIS)
    if colormap is not None:
        gr.setcolormap(colormap)
    gr.selntran(0)
    if isinstance(I, basestring):
        gr.drawimage(x_min, x_max, y_min, y_max, width, height, data)
    else:
        gr.cellarray(x_min, x_max, y_min, y_max, width, height, data)

    if 'title' in _plt.kwargs:
        gr.savestate()
        gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
        gr.textext(0.5 * (viewport[0] + viewport[1]), vp[3], _plt.kwargs['title'])
        gr.restorestate()
    gr.selntran(1)
Ejemplo n.º 5
0
def _plot_img(I):
    global _plt

    if isinstance(I, basestring):
        width, height, data = gr.readimage(I)
        if width == 0 or height == 0:
            return
    else:
        I = np.array(I)
        width, height = I.shape
        data = np.array(1000 + (1.0 * I - I.min()) / I.ptp() * 255, np.int32)

    if _plt.kwargs['clear']:
        gr.clearws()

    if not _plt.kwargs['ax']:
        _set_viewport('line', _plt.kwargs['subplot'])

    viewport = _plt.kwargs['viewport']
    vp = _plt.kwargs['vp']

    if width * (viewport[3] - viewport[2]) < height * (viewport[1] -
                                                       viewport[0]):
        w = width / height * (viewport[3] - viewport[2])
        x_min = max(0.5 * (viewport[0] + viewport[1] - w), viewport[0])
        x_max = min(0.5 * (viewport[0] + viewport[1] + w), viewport[1])
        y_min = viewport[2]
        y_max = viewport[3]
    else:
        h = height / width * (viewport[1] - viewport[0])
        x_min = viewport[0]
        x_max = viewport[1]
        y_min = max(0.5 * (viewport[3] + viewport[2] - h), viewport[2])
        y_max = min(0.5 * (viewport[3] + viewport[2] + h), viewport[3])

    gr.setcolormap(_plt.kwargs.get('cmap', 1))
    gr.selntran(0)
    if isinstance(I, basestring):
        gr.drawimage(x_min, x_max, y_min, y_max, width, height, data)
    else:
        gr.cellarray(x_min, x_max, y_min, y_max, width, height, data)

    if 'title' in _plt.kwargs:
        gr.savestate()
        gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
        gr.textext(0.5 * (viewport[0] + viewport[1]), vp[3],
                   _plt.kwargs['title'])
        gr.restorestate()
    gr.selntran(1)
Ejemplo n.º 6
0
Archivo: mlab.py Proyecto: j-fu/gr
def _plot_img(I):
    global _plt

    if isinstance(I, basestring):
        width, height, data = gr.readimage(I)
        if width == 0 or height == 0:
            return
    else:
        I = np.array(I)
        width, height = I.shape
        data = np.array(1000+(1.0*I - I.min()) / I.ptp() * 255, np.int32)

    if _plt.kwargs['clear']:
        gr.clearws()

    if not _plt.kwargs['ax']:
        _set_viewport('line', _plt.kwargs['subplot'])

    viewport = _plt.kwargs['viewport']
    vp = _plt.kwargs['vp']

    if width * (viewport[3] - viewport[2]) < height * (viewport[1] - viewport[0]):
        w = width / height * (viewport[3] - viewport[2])
        x_min = max(0.5 * (viewport[0] + viewport[1] - w), viewport[0])
        x_max = min(0.5 * (viewport[0] + viewport[1] + w), viewport[1])
        y_min = viewport[2]
        y_max = viewport[3]
    else:
        h = height / width * (viewport[1] - viewport[0])
        x_min = viewport[0]
        x_max = viewport[1]
        y_min = max(0.5 * (viewport[3] + viewport[2] - h), viewport[2])
        y_max = min(0.5 * (viewport[3] + viewport[2] + h), viewport[3])

    gr.setcolormap(_plt.kwargs.get('cmap', 1))
    gr.selntran(0)
    if isinstance(I, basestring):
        gr.drawimage(x_min, x_max, y_min, y_max, width, height, data)
    else:
        gr.cellarray(x_min, x_max, y_min, y_max, width, height, data)

    if 'title' in _plt.kwargs:
        gr.savestate()
        gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
        gr.textext(0.5 * (viewport[0] + viewport[1]), vp[3], _plt.kwargs['title'])
        gr.restorestate()
    gr.selntran(1)
Ejemplo n.º 7
0
def _colorbar(off=0.0, colors=256):
    global _plt
    gr.savestate()
    viewport = _plt.kwargs['viewport']
    zmin, zmax = _plt.kwargs['zrange']
    gr.setwindow(0, 1, zmin, zmax)
    gr.setviewport(viewport[1] + 0.02 + off, viewport[1] + 0.05 + off,
                   viewport[2], viewport[3])

    l = [1000+int(255*i/(colors-1)) for i in range(colors)]

    gr.cellarray(0, 1, zmax, zmin, 1, colors, l)
    diag = ((viewport[1] - viewport[0])**2 + (viewport[3] - viewport[2])**2)**0.5
    charheight = max(0.016 * diag, 0.012)
    gr.setcharheight(charheight)
    if _plt.kwargs['scale'] & gr.OPTION_Z_LOG:
        gr.setscale(gr.OPTION_Y_LOG)
        gr.axes(0, 2, 1, zmin, 0, 1, 0.005)
    else:
        ztick = 0.5 * gr.tick(zmin, zmax)
        gr.axes(0, ztick, 1, zmin, 0, 1, 0.005)
    gr.restorestate()
Ejemplo n.º 8
0
Archivo: mlab.py Proyecto: j-fu/gr
def _colorbar(off=0.0, colors=256):
    global _plt
    gr.savestate()
    viewport = _plt.kwargs['viewport']
    zmin, zmax = _plt.kwargs['zrange']
    gr.setwindow(0, 1, zmin, zmax)
    gr.setviewport(viewport[1] + 0.02 + off, viewport[1] + 0.05 + off,
                   viewport[2], viewport[3])

    l = [1000+int(255*i/(colors-1)) for i in range(colors)]

    gr.cellarray(0, 1, zmax, zmin, 1, colors, l)
    diag = ((viewport[1] - viewport[0])**2 + (viewport[3] - viewport[2])**2)**0.5
    charheight = max(0.016 * diag, 0.012)
    gr.setcharheight(charheight)
    if _plt.kwargs['scale'] & gr.OPTION_Z_LOG:
        gr.setscale(gr.OPTION_Y_LOG)
        gr.axes(0, 2, 1, zmin, 0, 1, 0.005)
    else:
        ztick = 0.5 * gr.tick(zmin, zmax)
        gr.axes(0, ztick, 1, zmin, 0, 1, 0.005)
    gr.restorestate()
Ejemplo n.º 9
0
Archivo: mlab.py Proyecto: j-fu/gr
def _draw_legend():
    global _plt
    viewport = _plt.kwargs['viewport']
    num_labels = len(_plt.kwargs['labels'])
    gr.savestate()
    gr.selntran(0)
    gr.setscale(0)
    w = 0
    for label in _plt.kwargs['labels']:
        tbx, tby = gr.inqtextext(0, 0, label)
        w = max(w, tbx[2])

    px = viewport[1] - 0.05 - w
    py = viewport[3] - 0.06
    gr.setfillintstyle(gr.INTSTYLE_SOLID)
    gr.setfillcolorind(0)
    gr.fillrect(px - 0.08, px + w + 0.02, py + 0.03, py - 0.03 * num_labels)
    gr.setlinetype(1)
    gr.setlinecolorind(1)
    gr.setlinewidth(1)
    gr.drawrect(px - 0.08, px + w + 0.02, py + 0.03, py - 0.03 * num_labels)
    i = 0
    gr.uselinespec(" ")
    for (x, y, z, c, spec) in _plt.args:
        gr.savestate()
        mask = gr.uselinespec(spec)
        if mask in (0, 1, 3, 4, 5):
            gr.polyline([px - 0.07, px - 0.01], [py, py])
        if mask & 2:
            gr.polymarker([px - 0.06, px - 0.02], [py, py])
        gr.restorestate()
        gr.settextalign(gr.TEXT_HALIGN_LEFT, gr.TEXT_VALIGN_HALF)
        if i < num_labels:
            gr.textext(px, py, _plt.kwargs['labels'][i])
            i += 1
        py -= 0.03
    gr.selntran(1)
    gr.restorestate()
Ejemplo n.º 10
0
def _draw_polar_axes():
    global _plt
    viewport = _plt.kwargs['viewport']
    diag = ((viewport[1]-viewport[0])**2 + (viewport[3]-viewport[2])**2)**0.5
    charheight = max(0.018 * diag, 0.012)


    window = _plt.kwargs['window']
    r_min, r_max = window[2], window[3]

    gr.savestate()
    gr.setcharheight(charheight)
    gr.setlinetype(gr.LINETYPE_SOLID)

    tick = 0.5 * gr.tick(r_min, r_max)
    n = int(round((r_max - r_min) / tick + 0.5))
    for i in range(n+1):
        r = i / n
        if i % 2 == 0:
            gr.setlinecolorind(88)
            if i > 0:
                gr.drawarc(-r, r, -r, r, 0, 359)
            gr.settextalign(gr.TEXT_HALIGN_LEFT, gr.TEXT_VALIGN_HALF)
            x, y = gr.wctondc(0.05, r)
            gr.text(x, y, "%g" % (r_min + i * tick))
        else:
            gr.setlinecolorind(90)
            gr.drawarc(-r, r, -r, r, 0, 359)
    for alpha in range(0, 360, 45):
        sinf = np.sin(np.radians(alpha+90))
        cosf = np.cos(np.radians(alpha+90))
        gr.polyline([sinf, 0], [cosf, 0])
        gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_HALF)
        x, y = gr.wctondc(1.1 * sinf, 1.1 * cosf)
        gr.textext(x, y, "%d^o" % alpha)
    gr.restorestate()
Ejemplo n.º 11
0
def _draw_polar_axes():
    global _plt
    viewport = _plt.kwargs['viewport']
    diag = ((viewport[1]-viewport[0])**2 + (viewport[3]-viewport[2])**2)**0.5
    charheight = max(0.018 * diag, 0.012)


    window = _plt.kwargs['window']
    r_min, r_max = window[2], window[3]

    gr.savestate()
    gr.setcharheight(charheight)
    gr.setlinetype(gr.LINETYPE_SOLID)

    tick = 0.5 * gr.tick(r_min, r_max)
    n = int(round((r_max - r_min) / tick + 0.5))
    for i in range(n+1):
        r = i / n
        if i % 2 == 0:
            gr.setlinecolorind(88)
            if i > 0:
                gr.drawarc(-r, r, -r, r, 0, 359)
            gr.settextalign(gr.TEXT_HALIGN_LEFT, gr.TEXT_VALIGN_HALF)
            x, y = gr.wctondc(0.05, r)
            gr.text(x, y, "%g" % (r_min + i * tick))
        else:
            gr.setlinecolorind(90)
            gr.drawarc(-r, r, -r, r, 0, 359)
    for alpha in range(0, 360, 45):
        sinf = np.sin(np.radians(alpha+90))
        cosf = np.cos(np.radians(alpha+90))
        gr.polyline([sinf, 0], [cosf, 0])
        gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_HALF)
        x, y = gr.wctondc(1.1 * sinf, 1.1 * cosf)
        gr.textext(x, y, "%d^o" % alpha)
    gr.restorestate()
Ejemplo n.º 12
0
def _draw_axes(kind, pass_=1):
    global _plt
    viewport = _plt.kwargs['viewport']
    vp = _plt.kwargs['vp']
    x_tick, x_org, x_major_count = _plt.kwargs['xaxis']
    y_tick, y_org, y_major_count = _plt.kwargs['yaxis']

    gr.setlinecolorind(1)
    gr.setlinewidth(1)
    diag = ((viewport[1]-viewport[0])**2 + (viewport[3]-viewport[2])**2)**0.5
    charheight = max(0.018 * diag, 0.012)
    gr.setcharheight(charheight)
    ticksize = 0.0075 * diag
    if kind in ('wireframe', 'surface', 'plot3', 'scatter3', 'trisurf'):
        z_tick, z_org, z_major_count = _plt.kwargs['zaxis']
        if pass_ == 1:
            gr.grid3d(x_tick, 0, z_tick, x_org[0], y_org[0], z_org[0], 2, 0, 2)
            gr.grid3d(0, y_tick, 0, x_org[1], y_org[0], z_org[0], 0, 2, 0)
        else:
            gr.axes3d(x_tick, 0, z_tick, x_org[0], y_org[0], z_org[0], x_major_count, 0, z_major_count, -ticksize)
            gr.axes3d(0, y_tick, 0, x_org[1], y_org[0], z_org[0], 0, y_major_count, 0, ticksize)
    else:
        if kind == 'heatmap':
            ticksize = -ticksize
        else:
            gr.grid(x_tick, y_tick, 0, 0, x_major_count, y_major_count)
        gr.axes(x_tick, y_tick, x_org[0], y_org[0], x_major_count, y_major_count, ticksize)
        gr.axes(x_tick, y_tick, x_org[1], y_org[1], -x_major_count, -y_major_count, -ticksize)

    if 'title' in _plt.kwargs:
        gr.savestate()
        gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
        gr.textext(0.5*(viewport[0] + viewport[1]), vp[3], _plt.kwargs['title'])
        gr.restorestate()

    if kind in ('wireframe', 'surface', 'plot3', 'scatter3', 'trisurf'):
        x_label = _plt.kwargs.get('xlabel', '')
        y_label = _plt.kwargs.get('ylabel', '')
        z_label = _plt.kwargs.get('zlabel', '')
        gr.titles3d(x_label, y_label, z_label)
    else:
        if 'xlabel' in _plt.kwargs:
            gr.savestate()
            gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_BOTTOM)
            gr.textext(0.5 * (viewport[0] + viewport[1]), vp[2] + 0.5 * charheight, _plt.kwargs['xlabel'])
            gr.restorestate()
        if 'ylabel' in _plt.kwargs:
            gr.savestate()
            gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
            gr.setcharup(-1, 0)
            gr.textext(vp[0] + 0.5 * charheight, 0.5 * (viewport[2] + viewport[3]), _plt.kwargs['ylabel'])
            gr.restorestate()
Ejemplo n.º 13
0
def _draw_axes(kind, pass_=1):
    global _plt
    viewport = _plt.kwargs['viewport']
    vp = _plt.kwargs['vp']
    x_tick, x_org, x_major_count = _plt.kwargs['xaxis']
    y_tick, y_org, y_major_count = _plt.kwargs['yaxis']

    gr.setlinecolorind(1)
    gr.setlinewidth(1)
    diag = ((viewport[1]-viewport[0])**2 + (viewport[3]-viewport[2])**2)**0.5
    charheight = max(0.018 * diag, 0.012)
    gr.setcharheight(charheight)
    ticksize = 0.0075 * diag
    if kind in ('wireframe', 'surface', 'plot3', 'scatter3', 'trisurf'):
        z_tick, z_org, z_major_count = _plt.kwargs['zaxis']
        if pass_ == 1:
            gr.grid3d(x_tick, 0, z_tick, x_org[0], y_org[1], z_org[0], 2, 0, 2)
            gr.grid3d(0, y_tick, 0, x_org[0], y_org[1], z_org[0], 0, 2, 0)
        else:
            gr.axes3d(x_tick, 0, z_tick, x_org[0], y_org[0], z_org[0], x_major_count, 0, z_major_count, -ticksize)
            gr.axes3d(0, y_tick, 0, x_org[1], y_org[0], z_org[0], 0, y_major_count, 0, ticksize)
    else:
        if kind == 'heatmap':
            ticksize = -ticksize
        else:
            gr.grid(x_tick, y_tick, 0, 0, x_major_count, y_major_count)
        gr.axes(x_tick, y_tick, x_org[0], y_org[0], x_major_count, y_major_count, ticksize)
        gr.axes(x_tick, y_tick, x_org[1], y_org[1], -x_major_count, -y_major_count, -ticksize)

    if 'title' in _plt.kwargs:
        gr.savestate()
        gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
        gr.textext(0.5*(viewport[0] + viewport[1]), vp[3], _plt.kwargs['title'])
        gr.restorestate()

    if kind in ('wireframe', 'surface', 'plot3', 'scatter3', 'trisurf'):
        x_label = _plt.kwargs.get('xlabel', '')
        y_label = _plt.kwargs.get('ylabel', '')
        z_label = _plt.kwargs.get('zlabel', '')
        gr.titles3d(x_label, y_label, z_label)
    else:
        if 'xlabel' in _plt.kwargs:
            gr.savestate()
            gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_BOTTOM)
            gr.textext(0.5 * (viewport[0] + viewport[1]), vp[2] + 0.5 * charheight, _plt.kwargs['xlabel'])
            gr.restorestate()
        if 'ylabel' in _plt.kwargs:
            gr.savestate()
            gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
            gr.setcharup(-1, 0)
            gr.textext(vp[0] + 0.5 * charheight, 0.5 * (viewport[2] + viewport[3]), _plt.kwargs['ylabel'])
            gr.restorestate()
Ejemplo n.º 14
0
Archivo: mlab.py Proyecto: j-fu/gr
def _plot_data(**kwargs):
    global _plt
    _plt.kwargs.update(kwargs)
    if not _plt.args:
        return
    kind = _plt.kwargs.get('kind', 'line')
    if _plt.kwargs['clear']:
        gr.clearws()
    if kind in ('imshow', 'isosurface'):
        _set_viewport(kind, _plt.kwargs['subplot'])
    elif not _plt.kwargs['ax']:
        _set_viewport(kind, _plt.kwargs['subplot'])
        _set_window(kind)
        _draw_axes(kind)

    gr.setcolormap(_plt.kwargs.get('colormap', gr.COLORMAP_COOLWARM))
    gr.uselinespec(" ")
    for x, y, z, c, spec in _plt.args:
        gr.savestate()
        if 'alpha' in _plt.kwargs:
            gr.settransparency(_plt.kwargs['alpha'])
        if kind == 'line':
            mask = gr.uselinespec(spec)
            if mask in (0, 1, 3, 4, 5):
                gr.polyline(x, y)
            if mask & 2:
                gr.polymarker(x, y)
        elif kind == 'scatter':
            gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
            if z is not None or c is not None:
                if c is not None:
                    c_min = c.min()
                    c_ptp = c.ptp()
                for i in range(len(x)):
                    if z is not None:
                        gr.setmarkersize(z[i] / 100.0)
                    if c is not None:
                        c_index = 1000 + int(255 * (c[i]-c_min)/c_ptp)
                        gr.setmarkercolorind(c_index)
                    gr.polymarker([x[i]], [y[i]])
            else:
                gr.polymarker(x, y)
        elif kind == 'stem':
            gr.setlinecolorind(1)
            gr.polyline(_plt.kwargs['window'][:2], [0, 0])
            gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
            gr.uselinespec(spec)
            for xi, yi in zip(x, y):
                gr.polyline([xi, xi], [0, yi])
            gr.polymarker(x, y)
        elif kind == 'hist':
            y_min = _plt.kwargs['window'][2]
            for i in range(1, len(y)):
                gr.setfillcolorind(989)
                gr.setfillintstyle(gr.INTSTYLE_SOLID)
                gr.fillrect(x[i-1], x[i], y_min, y[i])
                gr.setfillcolorind(1)
                gr.setfillintstyle(gr.INTSTYLE_HOLLOW)
                gr.fillrect(x[i-1], x[i], y_min, y[i])
        elif kind == 'contour':
            z_min, z_max = _plt.kwargs['zrange']
            gr.setspace(z_min, z_max, 0, 90)
            h = [z_min + i/19*(z_max-z_min) for i in range(20)]
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
            z.shape = np.prod(z.shape)
            gr.contour(x, y, h, z, 1000)
            _colorbar(0, 20)
        elif kind == 'contourf':
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
                z.shape = (200, 200)
            if _plt.kwargs['scale'] & gr.OPTION_Z_LOG != 0:
                z = np.log(z)
            width, height = z.shape
            data = np.array(1000+(z-z.min()) / z.ptp() * 255, np.int32)
            x_min, x_max = _plt.kwargs['xrange']
            y_min, y_max = _plt.kwargs['yrange']
            gr.cellarray(x_min, x_max, y_max, y_min, width, height, data)
            _colorbar()
        elif kind == 'wireframe':
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 50, 50)
            gr.setfillcolorind(0)
            z.shape = np.prod(z.shape)
            gr.surface(x, y, z, gr.OPTION_FILLED_MESH)
            _draw_axes(kind, 2)

        elif kind == 'surface':
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
            z.shape = np.prod(z.shape)
            if _plt.kwargs.get('accelerate', True):
                gr3.surface(x, y, z, gr.OPTION_COLORED_MESH)
            else:
                gr.surface(x, y, z, gr.OPTION_COLORED_MESH)
            _draw_axes(kind, 2)
            _colorbar(0.05)
        elif kind == 'plot3':
            gr.polyline3d(x, y, z)
            _draw_axes(kind, 2)
        elif kind == 'scatter3':
            gr.polymarker3d(x, y, z)
            _draw_axes(kind, 2)
        elif kind == 'imshow':
            _plot_img(z)
        elif kind == 'isosurface':
            _plot_iso(z)
        gr.restorestate()
    if kind in ('line', 'scatter', 'stem') and 'labels' in _plt.kwargs:
        _draw_legend()

    if _plt.kwargs['update']:
        gr.updatews()
        if gr.isinline():
            return gr.show()
Ejemplo n.º 15
0
def _plot_data(**kwargs):
    global _plt
    _plt.kwargs.update(kwargs)
    if not _plt.args:
        return
    kind = _plt.kwargs.get('kind', 'line')
    if _plt.kwargs['clear']:
        gr.clearws()
    if kind in ('imshow', 'isosurface'):
        _set_viewport(kind, _plt.kwargs['subplot'])
    elif not _plt.kwargs['ax']:
        _set_viewport(kind, _plt.kwargs['subplot'])
        _set_window(kind)
        if kind == 'polar':
            _draw_polar_axes()
        else:
            _draw_axes(kind)

    gr.setcolormap(_plt.kwargs.get('colormap', gr.COLORMAP_COOLWARM))
    gr.uselinespec(" ")
    for x, y, z, c, spec in _plt.args:
        gr.savestate()
        if 'alpha' in _plt.kwargs:
            gr.settransparency(_plt.kwargs['alpha'])
        if kind == 'line':
            mask = gr.uselinespec(spec)
            if mask in (0, 1, 3, 4, 5):
                gr.polyline(x, y)
            if mask & 2:
                gr.polymarker(x, y)
        elif kind == 'scatter':
            gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
            if z is not None or c is not None:
                if c is not None:
                    c_min = c.min()
                    c_ptp = c.ptp()
                for i in range(len(x)):
                    if z is not None:
                        gr.setmarkersize(z[i] / 100.0)
                    if c is not None:
                        c_index = 1000 + int(255 * (c[i]-c_min)/c_ptp)
                        gr.setmarkercolorind(c_index)
                    gr.polymarker([x[i]], [y[i]])
            else:
                gr.polymarker(x, y)
        elif kind == 'stem':
            gr.setlinecolorind(1)
            gr.polyline(_plt.kwargs['window'][:2], [0, 0])
            gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
            gr.uselinespec(spec)
            for xi, yi in zip(x, y):
                gr.polyline([xi, xi], [0, yi])
            gr.polymarker(x, y)
        elif kind == 'hist':
            y_min = _plt.kwargs['window'][2]
            for i in range(1, len(y)+1):
                gr.setfillcolorind(989)
                gr.setfillintstyle(gr.INTSTYLE_SOLID)
                gr.fillrect(x[i-1], x[i], y_min, y[i-1])
                gr.setfillcolorind(1)
                gr.setfillintstyle(gr.INTSTYLE_HOLLOW)
                gr.fillrect(x[i-1], x[i], y_min, y[i-1])
        elif kind == 'contour':
            z_min, z_max = _plt.kwargs['zrange']
            gr.setspace(z_min, z_max, 0, 90)
            h = [z_min + i/19*(z_max-z_min) for i in range(20)]
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
            z.shape = np.prod(z.shape)
            gr.contour(x, y, h, z, 1000)
            _colorbar(0, 20)
        elif kind == 'contourf':
            z_min, z_max = _plt.kwargs['zrange']
            gr.setspace(z_min, z_max, 0, 90)
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
                z.shape = (200, 200)
            if _plt.kwargs['scale'] & gr.OPTION_Z_LOG != 0:
                z = np.log(z)
            gr.surface(x, y, z, gr.OPTION_CELL_ARRAY)
            _colorbar()
        elif kind == 'hexbin':
            nbins = _plt.kwargs.get('nbins', 40)
            cntmax = gr.hexbin(x, y, nbins)
            if cntmax > 0:
                _plt.kwargs['zrange'] = (0, cntmax)
                _colorbar()
        elif kind == 'heatmap':
            x_min, x_max, y_min, y_max = _plt.kwargs['window']
            width, height = z.shape
            cmap = _colormap()
            icmap = np.zeros(256, np.uint32)
            for i in range(256):
                r, g, b, a = cmap[i]
                icmap[i] = (int(r*255) << 0) + (int(g*255) << 8) + (int(b*255) << 16) + (int(a*255) << 24)
            z_range = np.ptp(z)
            if z_range > 0:
                data = (z - np.min(z)) / z_range * 255
            else:
                data = np.zeros((width, height))
            rgba = np.zeros((width, height), np.uint32)
            for x in range(width):
                for y in range(height):
                    rgba[x, y] = icmap[int(data[x, y])]
            gr.drawimage(x_min, x_max, y_min, y_max, width, height, rgba)
            _colorbar()
        elif kind == 'wireframe':
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 50, 50)
            gr.setfillcolorind(0)
            z.shape = np.prod(z.shape)
            gr.surface(x, y, z, gr.OPTION_FILLED_MESH)
            _draw_axes(kind, 2)

        elif kind == 'surface':
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
            z.shape = np.prod(z.shape)
            if _plt.kwargs.get('accelerate', True):
                gr3.clear()
                gr3.surface(x, y, z, gr.OPTION_COLORED_MESH)
            else:
                gr.surface(x, y, z, gr.OPTION_COLORED_MESH)
            _draw_axes(kind, 2)
            _colorbar(0.05)
        elif kind == 'plot3':
            gr.polyline3d(x, y, z)
            _draw_axes(kind, 2)
        elif kind == 'scatter3':
            gr.polymarker3d(x, y, z)
            _draw_axes(kind, 2)
        elif kind == 'imshow':
            _plot_img(z)
        elif kind == 'isosurface':
            _plot_iso(z)
        elif kind == 'polar':
            gr.uselinespec(spec)
            _plot_polar(x, y)
        elif kind == 'trisurf':
            gr.trisurface(x, y, z)
            _draw_axes(kind, 2)
            _colorbar(0.05)
        gr.restorestate()
    if kind in ('line', 'scatter', 'stem') and 'labels' in _plt.kwargs:
        _draw_legend()

    if _plt.kwargs['update']:
        gr.updatews()
        if gr.isinline():
            return gr.show()
Ejemplo n.º 16
0
def _set_viewport(kind, subplot):
    global _plt
    metric_width, metric_height, pixel_width, pixel_height = gr.inqdspsize()
    if 'figsize' in _plt.kwargs:
        horizontal_pixels_per_inch = pixel_width * 0.0254 / metric_width
        vertical_pixels_per_inch = pixel_height * 0.0254 / metric_height
        width = _plt.kwargs['figsize'][0] * horizontal_pixels_per_inch
        height = _plt.kwargs['figsize'][1] * vertical_pixels_per_inch
    else:
        dpi = pixel_width / metric_width * 0.0254
        if dpi > 200:
            width, height = tuple(x * dpi / 100 for x in _plt.kwargs['size'])
        else:
            width, height = _plt.kwargs['size']

    viewport = [0, 0, 0, 0]
    vp = subplot[:]
    if width > height:
        aspect_ratio = height/width
        metric_size = metric_width * width / pixel_width
        gr.setwsviewport(0, metric_size, 0, metric_size*aspect_ratio)
        gr.setwswindow(0, 1, 0, aspect_ratio)
        vp[2] *= aspect_ratio
        vp[3] *= aspect_ratio
    else:
        aspect_ratio = width/ height
        metric_size = metric_height * height / pixel_height
        gr.setwsviewport(0, metric_size * aspect_ratio, 0, metric_size)
        gr.setwswindow(0, aspect_ratio, 0, 1)
        vp[0] *= aspect_ratio
        vp[1] *= aspect_ratio
    viewport[0] = vp[0] + 0.125 * (vp[1]-vp[0])
    viewport[1] = vp[0] + 0.925 * (vp[1]-vp[0])
    viewport[2] = vp[2] + 0.125 * (vp[3]-vp[2])
    viewport[3] = vp[2] + 0.925 * (vp[3]-vp[2])

    if width > height:
        viewport[2] += (1 - (subplot[3] - subplot[2])**2) * 0.02
    if kind in ('wireframe', 'surface', 'plot3', 'scatter3', 'trisurf'):
        viewport[1] -= 0.0525
    if kind in ('contour', 'contourf', 'surface', 'trisurf', 'heatmap', 'hexbin'):
        viewport[1] -= 0.1
    gr.setviewport(*viewport)
    _plt.kwargs['viewport'] = viewport
    _plt.kwargs['vp'] = vp
    _plt.kwargs['ratio'] = aspect_ratio

    if 'backgroundcolor' in _plt.kwargs:
        gr.savestate()
        gr.selntran(0)
        gr.setfillintstyle(gr.INTSTYLE_SOLID)
        gr.setfillcolorind(_plt.kwargs['backgroundcolor'])
        if width > height:
            gr.fillrect(subplot[0], subplot[1],
                        subplot[2] * aspect_ratio, subplot[3] * aspect_ratio)
        else:
            gr.fillrect(subplot[0] * aspect_ratio, subplot[1] * aspect_ratio,
                        subplot[2], subplot[3])
        gr.selntran(1)
        gr.restorestate()

    if kind == 'polar':
        x_min, x_max, y_min, y_max = viewport
        x_center = 0.5 * (x_min + x_max)
        y_center = 0.5 * (y_min + y_max)
        r = 0.5 * min(x_max - x_min, y_max - y_min)
        gr.setviewport(x_center - r, x_center + r, y_center - r, y_center + r)
Ejemplo n.º 17
0
def _plot_data(**kwargs):
    global _plt
    _plt.kwargs.update(kwargs)
    if not _plt.args:
        return
    kind = _plt.kwargs.get('kind', 'line')
    if _plt.kwargs['clear']:
        gr.clearws()
    if kind in ('imshow', 'isosurface'):
        _set_viewport(kind, _plt.kwargs['subplot'])
    elif not _plt.kwargs['ax']:
        _set_viewport(kind, _plt.kwargs['subplot'])
        _set_window(kind)
        if kind == 'polar':
            _draw_polar_axes()
        else:
            _draw_axes(kind)

    if 'cmap' in _plt.kwargs:
        warnings.warn('The parameter "cmap" has been replaced by "colormap". The value of "cmap" will be ignored.', stacklevel=3)
    colormap = _plt.kwargs.get('colormap', gr.COLORMAP_VIRIDIS)
    if colormap is not None:
        gr.setcolormap(colormap)
    gr.uselinespec(" ")
    for x, y, z, c, spec in _plt.args:
        gr.savestate()
        if 'alpha' in _plt.kwargs:
            gr.settransparency(_plt.kwargs['alpha'])
        if kind == 'line':
            mask = gr.uselinespec(spec)
            if mask in (0, 1, 3, 4, 5):
                gr.polyline(x, y)
            if mask & 2:
                gr.polymarker(x, y)
        elif kind == 'scatter':
            gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
            if z is not None or c is not None:
                if c is not None:
                    c_min = c.min()
                    c_ptp = c.ptp()
                for i in range(len(x)):
                    if z is not None:
                        gr.setmarkersize(z[i] / 100.0)
                    if c is not None:
                        c_index = 1000 + int(255 * (c[i]-c_min)/c_ptp)
                        gr.setmarkercolorind(c_index)
                    gr.polymarker([x[i]], [y[i]])
            else:
                gr.polymarker(x, y)
        elif kind == 'stem':
            gr.setlinecolorind(1)
            gr.polyline(_plt.kwargs['window'][:2], [0, 0])
            gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
            gr.uselinespec(spec)
            for xi, yi in zip(x, y):
                gr.polyline([xi, xi], [0, yi])
            gr.polymarker(x, y)
        elif kind == 'hist':
            y_min = _plt.kwargs['window'][2]
            for i in range(1, len(y)+1):
                gr.setfillcolorind(989)
                gr.setfillintstyle(gr.INTSTYLE_SOLID)
                gr.fillrect(x[i-1], x[i], y_min, y[i-1])
                gr.setfillcolorind(1)
                gr.setfillintstyle(gr.INTSTYLE_HOLLOW)
                gr.fillrect(x[i-1], x[i], y_min, y[i-1])
        elif kind == 'contour':
            z_min, z_max = _plt.kwargs['zrange']
            gr.setspace(z_min, z_max, 0, 90)
            h = [z_min + i/19*(z_max-z_min) for i in range(20)]
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
            z.shape = np.prod(z.shape)
            gr.contour(x, y, h, z, 1000)
            _colorbar(0, 20)
        elif kind == 'contourf':
            z_min, z_max = _plt.kwargs['zrange']
            gr.setspace(z_min, z_max, 0, 90)
            scale = _plt.kwargs['scale']
            gr.setscale(scale)
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
                z.shape = (200, 200)
            gr.surface(x, y, z, gr.OPTION_CELL_ARRAY)
            _colorbar()
        elif kind == 'hexbin':
            nbins = _plt.kwargs.get('nbins', 40)
            cntmax = gr.hexbin(x, y, nbins)
            if cntmax > 0:
                _plt.kwargs['zrange'] = (0, cntmax)
                _colorbar()
        elif kind == 'heatmap':
            x_min, x_max, y_min, y_max = _plt.kwargs['window']
            width, height = z.shape
            cmap = _colormap()
            icmap = np.zeros(256, np.uint32)
            for i in range(256):
                r, g, b, a = cmap[i]
                icmap[i] = (int(r*255) << 0) + (int(g*255) << 8) + (int(b*255) << 16) + (int(a*255) << 24)
            z_min, z_max = _plt.kwargs.get('zlim', (np.min(z), np.max(z)))
            if z_max < z_min:
                z_max, z_min = z_min, z_max
            if z_max > z_min:
                data = (z - z_min) / (z_max - z_min) * 255
            else:
                data = np.zeros((width, height))
            rgba = np.zeros((width, height), np.uint32)
            for x in range(width):
                for y in range(height):
                    rgba[x, y] = icmap[int(data[x, y])]
            gr.drawimage(x_min, x_max, y_min, y_max, width, height, rgba)
            _colorbar()
        elif kind == 'wireframe':
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 50, 50)
            gr.setfillcolorind(0)
            z.shape = np.prod(z.shape)
            gr.surface(x, y, z, gr.OPTION_FILLED_MESH)
            _draw_axes(kind, 2)

        elif kind == 'surface':
            if x.shape == y.shape == z.shape:
                x, y, z = gr.gridit(x, y, z, 200, 200)
            z.shape = np.prod(z.shape)
            if _plt.kwargs.get('accelerate', True):
                gr3.clear()
                gr3.surface(x, y, z, gr.OPTION_COLORED_MESH)
            else:
                gr.surface(x, y, z, gr.OPTION_COLORED_MESH)
            _draw_axes(kind, 2)
            _colorbar(0.05)
        elif kind == 'plot3':
            gr.polyline3d(x, y, z)
            _draw_axes(kind, 2)
        elif kind == 'scatter3':
            gr.polymarker3d(x, y, z)
            _draw_axes(kind, 2)
        elif kind == 'imshow':
            _plot_img(z)
        elif kind == 'isosurface':
            _plot_iso(z)
        elif kind == 'polar':
            gr.uselinespec(spec)
            _plot_polar(x, y)
        elif kind == 'trisurf':
            gr.trisurface(x, y, z)
            _draw_axes(kind, 2)
            _colorbar(0.05)
        elif kind == 'tricont':
            zmin, zmax = _plt.kwargs['zrange']
            levels = np.linspace(zmin, zmax, 20)
            gr.tricontour(x, y, z, levels)
        gr.restorestate()
    if kind in ('line', 'scatter', 'stem') and 'labels' in _plt.kwargs:
        _draw_legend()

    if _plt.kwargs['update']:
        gr.updatews()
        if gr.isinline():
            return gr.show()