cont

Author: xmarduel

.gitignore

@@ -142,8 +142,8 @@ clipper_642/clipper.o
 clipper_642/clipper642_test.exe
 clipper_642/clipper642_test.o
 
-pyside_ex/fonts
-pyside_ex/images
+misc_private/fonts
+misc_private/images
 
 gcodeviewer/drawers/*h
 gcodeviewer/drawers/*cpp

misc_private/opengl/glumpy_tutorial3.py

@@ -0,0 +1,32 @@
+# -----------------------------------------------------------------------------
+# Python & OpenGL for Scientific Visualization
+# www.labri.fr/perso/nrougier/python+opengl
+# Copyright (c) 2017, Nicolas P. Rougier
+# Distributed under the 2-Clause BSD License.
+# -----------------------------------------------------------------------------
+from glumpy import app, gloo, gl
+
+vertex = """
+    attribute vec2 position;
+    void main(){ gl_Position = vec4(position, 0.0, 1.0); } """
+
+fragment = """
+    void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); } """
+
+# Create a window with a valid GL context
+window = app.Window()
+
+# Build the program and corresponding buffers (with 4 vertices)
+quad = gloo.Program(vertex, fragment, count=4)
+
+# Upload data into GPU
+quad['position'] = (-1,+1), (+1,+1), (-1,-1), (+1,-1)
+
+# Tell glumpy what needs to be done at each redraw
+@window.event
+def on_draw(dt):
+    window.clear()
+    quad.draw(gl.GL_TRIANGLE_STRIP)
+
+# Run the app
+app.run()

pyside_ex/openGL_demo.py misc_private/opengl/openGL_demo.py

@@ -0,0 +1,8 @@
+import matplotlib.pyplot as plt
+from shapely.geometry import LineString, MultiPolygon, LinearRing, Point
+
+a = Point(1,1).buffer(1)
+
+x,y = a.exterior.coords.xy
+plt.plot(x,y)
+plt.show()

misc_private/shapely/plot.py

@@ -0,0 +1,74 @@
+
+from shapely.geometry import Polygon, LineString, MultiPolygon
+
+# Define lines and polygons:
+link_geom = LineString([
+   (364517,   364517), 
+   (265403,   364517), 
+   (265403,   265403), 
+   (364517,   265403), 
+   (364517,   364517), 
+   (367765,   367765), 
+   (262155,   367765), 
+   (262155,   262155), 
+   (367765,   262155), 
+   (367765,   367765)
+])
+
+poly_geom = Polygon([
+   (330708,   263779), 
+   (330037,   268874), 
+   (328071,   273622), 
+   (324943,   277698), 
+   (320866,   280827), 
+   (316118,   282793), 
+   (311023,   283464), 
+   (305928,   282793), 
+   (301181,   280827), 
+   (297104,   277698), 
+   (293975,   273622), 
+   (292009,   268874), 
+   (291338,   263779), 
+   (292009,   258684), 
+   (293975,   253937), 
+   (297104,   249860), 
+   (301181,   246731), 
+   (305928,   244765), 
+   (311023,   244094), 
+   (316118,   244765), 
+   (320866,   246731), 
+   (324943,   249860), 
+   (328071,   253937), 
+   (330037,   258684), 
+   (330708,   263779), 
+])
+
+multipolygon = MultiPolygon([poly_geom])
+
+result = link_geom.difference(multipolygon)
+
+print(result)
+
+'''
+MULTILINESTRING (
+    (364517 364517, 
+    265403 364517, 
+    265403 265403, 
+    291551.8771344455 265403), 
+    
+    (330494.1228655545 265403, 
+    364517 265403, 
+    364517 364517), 
+    
+    (364517 364517, 
+    367765 367765), 
+    
+    (367765 367765, 
+    262155 367765, 
+    262155 262155, 
+    291551.8771344455 262155),
+    
+    (330494.1228655545 262155, 
+    367765 262155, 
+    367765 367765))
+'''