I made two viewports of cube, but both of them are front orthogonal projections, and I need on of them to be from side. Here is a code of drawing draw_small is drawing of small static cube dwar_big is drawing of big cube, that can move,zoom and rotate
def on_draw(self) :
self.clear()
pgl.glClear(pgl.GL_COLOR_BUFFER_BIT | pgl.GL_DEPTH_BUFFER_BIT)
pgl.glViewport(0, 0, 650, 500)
pgl.glMatrixMode(pgl.GL_PROJECTION)
pgl.glLoadIdentity()
pgl.glOrtho(-1300 / 8, 1300 / 8, -1000 / 8, 1000 / 8, 100, 500)
pgl.glMatrixMode(pgl.GL_MODELVIEW)
pgl.glLoadIdentity
pgl.glTranslatef(0, 0, -100)
pgl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_FILL)
draw_small()
pgl.glPushMatrix()
pgl.glTranslatef(self.x, self.y, self.z)
pgl.glRotatef(self.xRotation, 1, 0, 0)
pgl.glRotatef(self.yRotation, 0, 1, 0)
pgl.glRotatef(self.zRotation, 0, 0, 1)
pgl.glScalef(self.zoom, self.zoom, self.zoom)
if not transparant:
pgl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_FILL)
else:
ogl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_LINE)
draw_big()
pgl.glPopMatrix()
pgl.glViewport(650, 0, 650, 500)
pgl.glMatrixMode(pgl.GL_PROJECTION)
pgl.glLoadIdentity()
pgl.glOrtho(-1300 / 8, 1300 / 8, -1000 / 8, 1000 / 8, 0, 500)
pgl.glMatrixMode(pgl.GL_MODELVIEW)
pgl.glLoadIdentity()
pgl.glTranslatef(0, 0, -100)
pgl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_FILL)
draw_small()
pgl.glPushMatrix()
pgl.glTranslatef(self.x, self.y, self.z)
pgl.glRotatef(self.xRotation, 1, 0, 0)
pgl.glRotatef(self.yRotation, 0, 1, 0)
pgl.glRotatef(self.zRotation, 0, 0, 1)
pgl.glScalef(self.zoom, self.zoom, self.zoom)
if not transparant:
pgl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_FILL)
else:
pgl.glPolygonMode(pgl.GL_FRONT_AND_BACK, pgl.GL_LINE)
draw_big()
pgl.glPopMatrix()
Just rotate the view by 90 degrees around the y axis in view sapce:
pgl.glMatrixMode(pgl.GL_MODELVIEW)
pgl.glLoadIdentity
pgl.glTranslatef(0, 0, -100)
pgl.glRotatef(-90, 0, 1, 0) # roatet 90 degrees around view space y axis
Note, left and right view are generated by pgl.glRotatef(-90, 0, 1, 0)
and pgl.glRotatef(90, 0, 1, 0)
.
Top and bottom view are achieved by rotations aroud the view sapce x axis, by pgl.glRotatef(90, 1, 0, 0)
respectively pgl.glRotatef(-90, 0, 1, 0)
.