def __init__(self, parent, geo, w_obj):
wx.Panel.__init__(self, parent, size=(600, 600))
self.status = parent.CreateStatusBar(3)
self.status.SetStatusWidths([-1, -2, -2])
self.status.SetStatusText('No Selection', 0)
self.Bind(wx.EVT_SIZE, self.onSize)
self.Bind(wx.EVT_PAINT, self.onPaint)
self.Bind(wx.EVT_MOUSE_EVENTS, self.onMouse)
self.trns = 0
self.background = (255, 255, 255, 255)
w, h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w, h, alpha=self.trns)
self.geo = geo
if geo.type == pysal.cg.shapes.Polygon:
self.drawfunc = self.drawpoly
self.locator = pysal.cg.PolygonLocator(geo)
elif geo.type == pysal.cg.shapes.Point:
self.drawfunc = self.drawpt
self.locator = pysal.cg.PointLocator(geo)
else:
raise TypeError, "Unsupported Type: %r" % (geo.type)
self.w = w_obj
self._ids = range(self.w.n)
self.transform = WorldToViewTransform(geo.bbox, w, h)
self.selection = None
def __init__(self, parent, geo, w_obj):
wx.Panel.__init__(self,parent,size=(600,600))
self.status = parent.CreateStatusBar(3)
self.status.SetStatusWidths([-1,-2,-2])
self.status.SetStatusText('No Selection',0)
self.Bind(wx.EVT_SIZE, self.onSize)
self.Bind(wx.EVT_PAINT, self.onPaint)
self.Bind(wx.EVT_MOUSE_EVENTS, self.onMouse)
self.trns = 0
self.background = (255,255,255,255)
w,h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w,h,alpha=self.trns)
self.geo = geo
if geo.type == pysal.cg.shapes.Polygon:
self.drawfunc = self.drawpoly
self.locator = pysal.cg.PolygonLocator(geo)
elif geo.type == pysal.cg.shapes.Point:
self.drawfunc = self.drawpt
self.locator = pysal.cg.PointLocator(geo)
else:
raise TypeError, "Unsupported Type: %r"%(geo.type)
self.w = w_obj
self._ids = range(self.w.n)
self.transform = WorldToViewTransform(geo.bbox,w,h)
self.selection = None
def onSize(self, evt):
w,h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w,h,alpha=self.trns)
self.transform = WorldToViewTransform(self.geo.bbox,w,h)
self.draw()
class WeightsMap(wx.Panel):
""" Display a Weights Inspection Map """
def __init__(self, parent, geo, w_obj):
wx.Panel.__init__(self,parent,size=(600,600))
self.status = parent.CreateStatusBar(3)
self.status.SetStatusWidths([-1,-2,-2])
self.status.SetStatusText('No Selection',0)
self.Bind(wx.EVT_SIZE, self.onSize)
self.Bind(wx.EVT_PAINT, self.onPaint)
self.Bind(wx.EVT_MOUSE_EVENTS, self.onMouse)
self.trns = 0
self.background = (255,255,255,255)
w,h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w,h,alpha=self.trns)
self.geo = geo
if geo.type == pysal.cg.shapes.Polygon:
self.drawfunc = self.drawpoly
self.locator = pysal.cg.PolygonLocator(geo)
elif geo.type == pysal.cg.shapes.Point:
self.drawfunc = self.drawpt
self.locator = pysal.cg.PointLocator(geo)
else:
raise TypeError, "Unsupported Type: %r"%(geo.type)
self.w = w_obj
self._ids = range(self.w.n)
self.transform = WorldToViewTransform(geo.bbox,w,h)
self.selection = None
def onMouse(self, evt):
x,y = evt.X,evt.Y
X,Y = self.transform.pixel_to_world(x,y)
if self.geo.type == pysal.cg.shapes.Polygon:
rs = self.locator.contains_point((X,Y))
if rs:
selection = rs[0].id-1
self.set_selection(selection)
else:
self.set_selection(None)
else:
print self.locator.nearest((X,Y))
def onSize(self, evt):
w,h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w,h,alpha=self.trns)
self.transform = WorldToViewTransform(self.geo.bbox,w,h)
self.draw()
def onPaint(self, evt):
pdc = wx.PaintDC(self)
pdc.Clear()
self.draw()
def draw(self):
dc = wx.MemoryDC()
dc.SelectObject(self.buffer)
dc.SetBackground(wx.Brush(wx.Colour(*self.background)))
dc.Clear()
dc.SelectObject(wx.NullBitmap)
self.draw_shps(self.buffer)
cdc = wx.ClientDC(self)
cdc.DrawBitmap(self.buffer,0,0)
def drawpoly(self,gc,matrix,fill=False,ids=None):
geo = self.geo
pth = gc.CreatePath()
if not ids:
ids = xrange(len(geo))
for i in ids:
poly = geo.get(i)
parts = poly.parts
if poly.holes[0]:
parts = parts+poly.holes
for part in parts:
x,y = part[0]
pth.MoveToPoint(x,y)
for x,y in part[1:]:
pth.AddLineToPoint(x,y)
pth.CloseSubpath()
pth.Transform(matrix)
if fill:
gc.FillPath(pth)
gc.StrokePath(pth)
return gc
def drawpt(self,gc,matrix,fill=False,ids=None):
r = POINT_RADIUS
radius = r/2.0
geo = self.geo
for pt in geo:
x,y = matrix.TransformPoint(*pt)
gc.DrawEllipse(x-radius,y-radius,r,r)
return gc
def draw_shps(self, buff, fill_color=None, ids=None, fill_style=wx.SOLID):
transform = self.transform
dc = wx.MemoryDC()
dc.SelectObject(buff)
gc = wx.GraphicsContext.Create(dc)
gc.SetPen( gc.CreatePen(wx.Pen(BORDER_COLOR,1)) )
if fill_color != None:
gc.SetBrush( gc.CreateBrush(wx.Brush(fill_color,fill_style)) )
fill = True
else:
fill = False
matrix = gc.CreateMatrix()
matrix.Scale(1./transform.scale,1./-transform.scale)
matrix.Translate(*transform.offset)
self.drawfunc(gc,matrix,fill,ids)
def set_selection(self,sel):
if self.selection == sel:
return
self.selection = sel
cdc = wx.ClientDC(self)
if sel != None:
w,h = self.transform.pixel_size
buff = self.buffer.GetSubBitmap((0,0,w,h))
id = self.w.id_order[sel]
neighbors = map(self.w.id_order.index,self.w.neighbors[id])
self.draw_shps(buff, NEIGHBORS_COLOR, neighbors)
if sel in neighbors:
self.draw_shps(buff, SELECTION_COLOR, [sel], wx.CROSSDIAG_HATCH)
else:
self.draw_shps(buff, SELECTION_COLOR, [sel])
print sel,":",neighbors
cdc.DrawBitmap(buff,0,0)
stat0 = "Selection:%s"%id
stat1 = "Neighbors:%s"%(','.join(map(str,self.w.neighbors[id])))
stat2 = "Weights:%s"%(','.join(map(str,self.w.weights[id])))
self.status.SetStatusText(stat0,0)
self.status.SetStatusText(stat1,1)
self.status.SetStatusText(stat2,2)
else:
self.status.SetStatusText('No Selection',0)
self.status.SetStatusText('',1)
self.status.SetStatusText('',2)
cdc.DrawBitmap(self.buffer,0,0)
def onSize(self, evt):
w, h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w, h, alpha=self.trns)
self.transform = WorldToViewTransform(self.geo.bbox, w, h)
self.draw()
class WeightsMap(wx.Panel):
""" Display a Weights Inspection Map """
def __init__(self, parent, geo, w_obj):
wx.Panel.__init__(self, parent, size=(600, 600))
self.status = parent.CreateStatusBar(3)
self.status.SetStatusWidths([-1, -2, -2])
self.status.SetStatusText('No Selection', 0)
self.Bind(wx.EVT_SIZE, self.onSize)
self.Bind(wx.EVT_PAINT, self.onPaint)
self.Bind(wx.EVT_MOUSE_EVENTS, self.onMouse)
self.trns = 0
self.background = (255, 255, 255, 255)
w, h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w, h, alpha=self.trns)
self.geo = geo
if geo.type == pysal.cg.shapes.Polygon:
self.drawfunc = self.drawpoly
self.locator = pysal.cg.PolygonLocator(geo)
elif geo.type == pysal.cg.shapes.Point:
self.drawfunc = self.drawpt
self.locator = pysal.cg.PointLocator(geo)
else:
raise TypeError, "Unsupported Type: %r" % (geo.type)
self.w = w_obj
self._ids = range(self.w.n)
self.transform = WorldToViewTransform(geo.bbox, w, h)
self.selection = None
def onMouse(self, evt):
x, y = evt.X, evt.Y
X, Y = self.transform.pixel_to_world(x, y)
if self.geo.type == pysal.cg.shapes.Polygon:
rs = self.locator.contains_point((X, Y))
if rs:
selection = rs[0].id - 1
self.set_selection(selection)
else:
self.set_selection(None)
else:
print self.locator.nearest((X, Y))
def onSize(self, evt):
w, h = self.GetSize()
self.buffer = wx.EmptyBitmapRGBA(w, h, alpha=self.trns)
self.transform = WorldToViewTransform(self.geo.bbox, w, h)
self.draw()
def onPaint(self, evt):
pdc = wx.PaintDC(self)
pdc.Clear()
self.draw()
def draw(self):
dc = wx.MemoryDC()
dc.SelectObject(self.buffer)
dc.SetBackground(wx.Brush(wx.Colour(*self.background)))
dc.Clear()
dc.SelectObject(wx.NullBitmap)
self.draw_shps(self.buffer)
cdc = wx.ClientDC(self)
cdc.DrawBitmap(self.buffer, 0, 0)
def drawpoly(self, gc, matrix, fill=False, ids=None):
geo = self.geo
pth = gc.CreatePath()
if not ids:
ids = xrange(len(geo))
for i in ids:
poly = geo.get(i)
parts = poly.parts
if poly.holes[0]:
parts = parts + poly.holes
for part in parts:
x, y = part[0]
pth.MoveToPoint(x, y)
for x, y in part[1:]:
pth.AddLineToPoint(x, y)
pth.CloseSubpath()
pth.Transform(matrix)
if fill:
gc.FillPath(pth)
gc.StrokePath(pth)
return gc
def drawpt(self, gc, matrix, fill=False, ids=None):
r = POINT_RADIUS
radius = r / 2.0
geo = self.geo
for pt in geo:
x, y = matrix.TransformPoint(*pt)
gc.DrawEllipse(x - radius, y - radius, r, r)
return gc
def draw_shps(self, buff, fill_color=None, ids=None, fill_style=wx.SOLID):
transform = self.transform
dc = wx.MemoryDC()
dc.SelectObject(buff)
gc = wx.GraphicsContext.Create(dc)
gc.SetPen(gc.CreatePen(wx.Pen(BORDER_COLOR, 1)))
if fill_color != None:
gc.SetBrush(gc.CreateBrush(wx.Brush(fill_color, fill_style)))
fill = True
else:
fill = False
matrix = gc.CreateMatrix()
matrix.Scale(1. / transform.scale, 1. / -transform.scale)
matrix.Translate(*transform.offset)
self.drawfunc(gc, matrix, fill, ids)
def set_selection(self, sel):
if self.selection == sel:
return
self.selection = sel
cdc = wx.ClientDC(self)
if sel != None:
w, h = self.transform.pixel_size
buff = self.buffer.GetSubBitmap((0, 0, w, h))
id = self.w.id_order[sel]
neighbors = map(self.w.id_order.index, self.w.neighbors[id])
self.draw_shps(buff, NEIGHBORS_COLOR, neighbors)
if sel in neighbors:
self.draw_shps(buff, SELECTION_COLOR, [sel],
wx.CROSSDIAG_HATCH)
else:
self.draw_shps(buff, SELECTION_COLOR, [sel])
print sel, ":", neighbors
cdc.DrawBitmap(buff, 0, 0)
stat0 = "Selection:%s" % id
stat1 = "Neighbors:%s" % (','.join(map(str, self.w.neighbors[id])))
stat2 = "Weights:%s" % (','.join(map(str, self.w.weights[id])))
self.status.SetStatusText(stat0, 0)
self.status.SetStatusText(stat1, 1)
self.status.SetStatusText(stat2, 2)
else:
self.status.SetStatusText('No Selection', 0)
self.status.SetStatusText('', 1)
self.status.SetStatusText('', 2)
cdc.DrawBitmap(self.buffer, 0, 0)
