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Added support for GL_LINES in GLLinePlotItem

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This commit is contained in:
Luke Campagnola 2014-02-09 10:39:20 -05:00
parent 5488f9ec84
commit c8ee4a86be
1 changed files with 13 additions and 2 deletions
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15
pyqtgraph/opengl/items/GLLinePlotItem.py
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@ -16,6 +16,7 @@ class GLLinePlotItem(GLGraphicsItem):
glopts = kwds.pop('glOptions', 'additive')
self.setGLOptions(glopts)
self.pos = None
self.mode = 'line_strip'
self.width = 1.
self.color = (1.0,1.0,1.0,1.0)
self.setData(**kwds)
@ -35,9 +36,13 @@ class GLLinePlotItem(GLGraphicsItem):
a single color for the entire item.
width float specifying line width
antialias enables smooth line drawing
mode 'lines': Each pair of vertexes draws a single line
segment.
'line_strip': All vertexes are drawn as a
continuous set of line segments.
==================== ==================================================
"""
args = ['pos', 'color', 'width', 'connected', 'antialias']
args = ['pos', 'color', 'width', 'mode', 'antialias']
for k in kwds.keys():
if k not in args:
raise Exception('Invalid keyword argument: %s (allowed arguments are %s)' % (k, str(args)))
@ -93,7 +98,13 @@ class GLLinePlotItem(GLGraphicsItem):
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glDrawArrays(GL_LINE_STRIP, 0, int(self.pos.size / self.pos.shape[-1]))
if self.mode == 'line_strip':
glDrawArrays(GL_LINE_STRIP, 0, int(self.pos.size / self.pos.shape[-1]))
elif self.mode == 'lines':
glDrawArrays(GL_LINES, 0, int(self.pos.size / self.pos.shape[-1]))
else:
raise Exception("Unknown line mode '%s'. (must be 'lines' or 'line_strip')" % self.mode)
finally:
glDisableClientState(GL_COLOR_ARRAY)
glDisableClientState(GL_VERTEX_ARRAY)