def drawFilledCircle(color, center, radius, normal): """ Scale, rotate/translate the unit circle properly. Added a filled circle variant, piotr 080405 """ glMatrixMode(GL_MODELVIEW) glPushMatrix() glColor3fv(color) glDisable(GL_LIGHTING) glTranslatef(center[0], center[1], center[2]) rQ = Q(V(0, 0, 1), normal) rotAngle = rQ.angle * 180.0 / pi #This may cause problems as proved before in Linear motor display. #rotation around (0, 0, 0) #if vlen(V(rQ.x, rQ.y, rQ.z)) < 0.00005: # rQ.x = 1.0 glRotatef(rotAngle, rQ.x, rQ.y, rQ.z) glScalef(radius, radius, 1.0) glCallList(drawing_globals.filledCircleList) glEnable(GL_LIGHTING) glPopMatrix() return
def drawFilledCircle(color, center, radius, normal): """ Scale, rotate/translate the unit circle properly. Added a filled circle variant, piotr 080405 """ glMatrixMode(GL_MODELVIEW) glPushMatrix() glColor3fv(color) glDisable(GL_LIGHTING) glTranslatef(center[0], center[1], center[2]) rQ = Q(V(0, 0, 1), normal) rotAngle = rQ.angle*180.0/pi #This may cause problems as proved before in Linear motor display. #rotation around (0, 0, 0) #if vlen(V(rQ.x, rQ.y, rQ.z)) < 0.00005: # rQ.x = 1.0 glRotatef(rotAngle, rQ.x, rQ.y, rQ.z) glScalef(radius, radius, 1.0) glCallList(drawing_globals.filledCircleList) glEnable(GL_LIGHTING) glPopMatrix() return
def drawPlane(color, w, h, textureReady, opacity, SOLID=False, pickCheckOnly=False, tex_coords=None): """ Draw polygon with size of <w>*<h> and with color <color>. Optionally, it could be texuture mapped, translucent. @pickCheckOnly This is used to draw the geometry only, used for OpenGL pick selection purpose. """ vs = [[-0.5, 0.5, 0.0], [-0.5, -0.5, 0.0], [0.5, -0.5, 0.0], [0.5, 0.5, 0.0]] # piotr 080529: use external texture coordinates if provided if tex_coords is None: vt = [[0.0, 1.0], [0.0, 0.0], [1.0, 0.0], [1.0, 1.0]] else: vt = tex_coords if textureReady: opacity = 1.0 glDisable(GL_LIGHTING) glColor4fv(list(color) + [opacity]) glPushMatrix() glScalef(w, h, 1.0) if SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) else: glPolygonMode(GL_FRONT_AND_BACK, GL_LINE) glDisable(GL_CULL_FACE) if not pickCheckOnly: # This makes sure a translucent object will not occlude another # translucent object. glDepthMask(GL_FALSE) glEnable(GL_BLEND) glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) if textureReady: glEnable(GL_TEXTURE_2D) glBegin(GL_QUADS) for ii in range(len(vs)): t = vt[ii]; v = vs[ii] if textureReady: glTexCoord2fv(t) glVertex3fv(v) glEnd() if not pickCheckOnly: if textureReady: glDisable(GL_TEXTURE_2D) glDisable(GL_BLEND) glDepthMask(GL_TRUE) glEnable(GL_CULL_FACE) if not SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) glPopMatrix() glEnable(GL_LIGHTING) return
def drawHeightfield(color, w, h, textureReady, opacity, SOLID=False, pickCheckOnly=False, hf=None): """ Draw a heighfield using vertex and normal arrays. Optionally, it could be texuture mapped. @pickCheckOnly This is used to draw the geometry only, used for OpenGL pick selection purpose. """ from OpenGL.GL import glTexEnvf from OpenGL.GL import GL_TEXTURE_ENV from OpenGL.GL import GL_TEXTURE_ENV_MODE from OpenGL.GL import GL_MODULATE from OpenGL.GL import glVertexPointer from OpenGL.GL import glNormalPointer from OpenGL.GL import glTexCoordPointer from OpenGL.GL import glDrawArrays from OpenGL.GL import glEnableClientState from OpenGL.GL import GL_VERTEX_ARRAY from OpenGL.GL import GL_NORMAL_ARRAY from OpenGL.GL import GL_TEXTURE_COORD_ARRAY glEnable(GL_COLOR_MATERIAL) glEnable(GL_LIGHTING) ### glColor4fv(list(color) + [opacity]) ### glColor3fv(list(color)) glColor3f(1.0, 1.0, 1.0) glPushMatrix() glScalef(w, h, 1.0) if SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) else: glPolygonMode(GL_FRONT_AND_BACK, GL_LINE) glDisable(GL_CULL_FACE) if not pickCheckOnly: glEnable(GL_BLEND) glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) if textureReady: glEnable(GL_TEXTURE_2D) glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE) glEnableClientState(GL_VERTEX_ARRAY) glEnableClientState(GL_NORMAL_ARRAY) glEnableClientState(GL_TEXTURE_COORD_ARRAY) for tstrip_vert, tstrip_norm, tstrip_tex in hf: glVertexPointer(3, GL_FLOAT, 0, tstrip_vert) glNormalPointer(GL_FLOAT, 0, tstrip_norm) glTexCoordPointer(2, GL_FLOAT, 0, tstrip_tex) glDrawArrays(GL_TRIANGLE_STRIP, 0, len(tstrip_vert)) glDisableClientState(GL_VERTEX_ARRAY) glDisableClientState(GL_NORMAL_ARRAY) glDisableClientState(GL_TEXTURE_COORD_ARRAY) glDisable(GL_COLOR_MATERIAL) if not pickCheckOnly: if textureReady: glDisable(GL_TEXTURE_2D) glDepthMask(GL_TRUE) glEnable(GL_CULL_FACE) if not SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) glPopMatrix() glEnable(GL_LIGHTING) return
def drawHeightfield(color, w, h, textureReady, opacity, SOLID = False, pickCheckOnly = False, hf = None): """ Draw a heighfield using vertex and normal arrays. Optionally, it could be texture mapped. @pickCheckOnly This is used to draw the geometry only, used for OpenGL pick selection purpose. """ if not hf: # Return if heightfield is not provided return glEnable(GL_COLOR_MATERIAL) glEnable(GL_LIGHTING) # Don't use opacity, otherwise the heighfield polygons should be sorted # - something to implement later... ## glColor3v(list(color)) if textureReady: # For texturing, use white color (to be modulated by the texture) glColor3f(1,1,1) else: glColor3fv(list(color)) glPushMatrix() glScalef(w, h, 1.0) if SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) else: glPolygonMode(GL_FRONT_AND_BACK, GL_LINE) glDisable(GL_CULL_FACE) if not pickCheckOnly: glEnable(GL_BLEND) glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) if textureReady: glEnable(GL_TEXTURE_2D) glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE) glEnableClientState(GL_VERTEX_ARRAY) glEnableClientState(GL_NORMAL_ARRAY) glEnableClientState(GL_TEXTURE_COORD_ARRAY) for tstrip_vert, tstrip_norm, tstrip_tex in hf: glVertexPointer(3, GL_FLOAT, 0, tstrip_vert) glNormalPointer(GL_FLOAT, 0, tstrip_norm) glTexCoordPointer(2, GL_FLOAT, 0, tstrip_tex) glDrawArrays(GL_TRIANGLE_STRIP, 0, len(tstrip_vert)) glDisableClientState(GL_VERTEX_ARRAY) glDisableClientState(GL_NORMAL_ARRAY) glDisableClientState(GL_TEXTURE_COORD_ARRAY) glDisable(GL_COLOR_MATERIAL) if not pickCheckOnly: if textureReady: glDisable(GL_TEXTURE_2D) glDepthMask(GL_TRUE) glEnable(GL_CULL_FACE) if not SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) glPopMatrix() glEnable(GL_LIGHTING) return
def drawPlane(color, w, h, textureReady, opacity, SOLID=False, pickCheckOnly=False, tex_coords=None): """ Draw polygon with size of <w>*<h> and with color <color>. Optionally, it could be texuture mapped, translucent. @pickCheckOnly This is used to draw the geometry only, used for OpenGL pick selection purpose. @param tex_coords: texture coordinates to be explicitly provided (for simple image transformation purposes) """ vs = [[-0.5, 0.5, 0.0], [-0.5, -0.5, 0.0], [0.5, -0.5, 0.0], [0.5, 0.5, 0.0]] # piotr 080529: use external texture coordinates if provided if tex_coords is None: vt = [[0.0, 1.0], [0.0, 0.0], [1.0, 0.0], [1.0, 1.0]] else: vt = tex_coords if textureReady: opacity = 1.0 glDisable(GL_LIGHTING) glColor4fv(list(color) + [opacity]) glPushMatrix() glScalef(w, h, 1.0) if SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) else: glPolygonMode(GL_FRONT_AND_BACK, GL_LINE) glDisable(GL_CULL_FACE) if not pickCheckOnly: # This makes sure a translucent object will not occlude another # translucent object. glDepthMask(GL_FALSE) glEnable(GL_BLEND) glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) if textureReady: glEnable(GL_TEXTURE_2D) glBegin(GL_QUADS) for ii in range(len(vs)): t = vt[ii] v = vs[ii] if textureReady: glTexCoord2fv(t) glVertex3fv(v) glEnd() if not pickCheckOnly: if textureReady: glDisable(GL_TEXTURE_2D) glDisable(GL_BLEND) glDepthMask(GL_TRUE) glEnable(GL_CULL_FACE) if not SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) glPopMatrix() glEnable(GL_LIGHTING) return
def drawHeightfield(color, w, h, textureReady, opacity, SOLID=False, pickCheckOnly=False, hf=None): """ Draw a heighfield using vertex and normal arrays. Optionally, it could be texture mapped. @pickCheckOnly This is used to draw the geometry only, used for OpenGL pick selection purpose. """ if not hf: # Return if heightfield is not provided return glEnable(GL_COLOR_MATERIAL) glEnable(GL_LIGHTING) # Don't use opacity, otherwise the heighfield polygons should be sorted # - something to implement later... ## glColor3v(list(color)) if textureReady: # For texturing, use white color (to be modulated by the texture) glColor3f(1, 1, 1) else: glColor3fv(list(color)) glPushMatrix() glScalef(w, h, 1.0) if SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) else: glPolygonMode(GL_FRONT_AND_BACK, GL_LINE) glDisable(GL_CULL_FACE) if not pickCheckOnly: glEnable(GL_BLEND) glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) if textureReady: glEnable(GL_TEXTURE_2D) glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE) glEnableClientState(GL_VERTEX_ARRAY) glEnableClientState(GL_NORMAL_ARRAY) glEnableClientState(GL_TEXTURE_COORD_ARRAY) for tstrip_vert, tstrip_norm, tstrip_tex in hf: glVertexPointer(3, GL_FLOAT, 0, tstrip_vert) glNormalPointer(GL_FLOAT, 0, tstrip_norm) glTexCoordPointer(2, GL_FLOAT, 0, tstrip_tex) glDrawArrays(GL_TRIANGLE_STRIP, 0, len(tstrip_vert)) glDisableClientState(GL_VERTEX_ARRAY) glDisableClientState(GL_NORMAL_ARRAY) glDisableClientState(GL_TEXTURE_COORD_ARRAY) glDisable(GL_COLOR_MATERIAL) if not pickCheckOnly: if textureReady: glDisable(GL_TEXTURE_2D) glDepthMask(GL_TRUE) glEnable(GL_CULL_FACE) if not SOLID: glPolygonMode(GL_FRONT_AND_BACK, GL_FILL) glPopMatrix() glEnable(GL_LIGHTING) return