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add renderer z offset

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This commit is contained in:
Laura Klünder 2017-12-05 18:13:06 +01:00
parent 46256e63df
commit 3992ccd552
4 changed files with 10 additions and 6 deletions
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4
src/c3nav/mapdata/render/engines/base.py
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@ -29,11 +29,13 @@ class RenderEngine(ABC):
filetype = 'dat'
# draw an svg image. supports pseudo-3D shadow-rendering
def __init__(self, width: int, height: int, xoff=0, yoff=0, scale=1, buffer=0, background='#FFFFFF', center=True):
def __init__(self, width: int, height: int, xoff=0, yoff=0, zoff=0,
scale=1, buffer=0, background='#FFFFFF', center=True):
self.width = width
self.height = height
self.minx = xoff
self.miny = yoff
self.base_z = zoff
self.scale = scale
self.orig_buffer = buffer
self.buffer = int(math.ceil(buffer*self.scale))

4
src/c3nav/mapdata/render/engines/opengl.py
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@ -153,10 +153,10 @@ class OpenGLEngine(Base3DEngine):
scale_x = self.scale / self.width * 2
scale_y = self.scale / self.height * 2
scale_z = (scale_x+scale_y) / 2
scale_z = 0.05
self.gl_scale = (scale_x, -scale_y, scale_z)
self.gl_offset = (-self.minx * scale_x - 1, self.maxy * scale_y - 1, 0)
self.gl_offset = (-self.minx * scale_x - 1, self.maxy * scale_y - 1, -self.base_z * scale_z)
self.vertices = []