85 lines
2.6 KiB
Python
Executable File
85 lines
2.6 KiB
Python
Executable File
import sys, os
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# Add the igl library to the modules search path
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sys.path.insert(0, os.getcwd() + "/../")
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import pyigl as igl
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from shared import TUTORIAL_SHARED_PATH, check_dependencies
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dependencies = ["cgal", "viewer"]
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check_dependencies(dependencies)
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boolean_type_names = {igl.MESH_BOOLEAN_TYPE_UNION: "Union", igl.MESH_BOOLEAN_TYPE_INTERSECT: "Intersect", igl.MESH_BOOLEAN_TYPE_MINUS: "Minus", igl.MESH_BOOLEAN_TYPE_XOR: "XOR", igl.MESH_BOOLEAN_TYPE_RESOLVE: "Resolve"}
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boolean_types = list(boolean_type_names.keys())
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def update(viewer):
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print("Calculating A %s B..." % boolean_type_names[boolean_type])
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igl.cgal.mesh_boolean(VA, FA, VB, FB, boolean_type, VC, FC, J)
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C = igl.eigen.MatrixXd(FC.rows(), 3)
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for f in range(C.rows()):
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if J[f] < FA.rows():
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C.setRow(f, Red)
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else:
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C.setRow(f, Green)
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viewer.data.clear()
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viewer.data.set_mesh(VC, FC)
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viewer.data.set_colors(C)
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print("Done.")
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def key_down(viewer, key, modifier):
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global boolean_type
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# print(boolean_types)
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if key == ord('.'):
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boolean_type = boolean_types[(boolean_types.index(boolean_type) + 1) % (len(boolean_types))]
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elif key == ord(','):
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boolean_type = boolean_types[(boolean_types.index(boolean_type) + len(boolean_types) - 1) % len(boolean_types)]
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elif key == ord('['):
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viewer.core.camera_dnear -= 0.1
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elif key == ord(']'):
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viewer.core.camera_dnear += 0.1
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else:
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return False
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#igl.cgal.mesh_boolean(VA, FA, VB, FB, boolean_type, VC, FC)
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update(viewer)
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return False
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if __name__ == "__main__":
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# Mesh with per-face color
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VA = igl.eigen.MatrixXd()
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FA = igl.eigen.MatrixXi()
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VB = igl.eigen.MatrixXd()
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FB = igl.eigen.MatrixXi()
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VC = igl.eigen.MatrixXd()
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FC = igl.eigen.MatrixXi()
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J = igl.eigen.MatrixXi()
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Red = igl.eigen.MatrixXd([[1, 0, 0]])
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Green = igl.eigen.MatrixXd([[0, 1, 0]])
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# Load meshes in OFF format
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igl.readOFF(TUTORIAL_SHARED_PATH + "cheburashka.off", VA, FA)
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igl.readOFF(TUTORIAL_SHARED_PATH + "decimated-knight.off", VB, FB)
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boolean_type = igl.MESH_BOOLEAN_TYPE_UNION
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viewer = igl.viewer.Viewer()
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update(viewer)
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print(
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"Usage: Press '.' to switch to next boolean operation type. \nPress ',' to switch to previous boolean operation type. \nPress ']' to push near cutting plane away from camera. \nPress '[' to pull near cutting plane closer to camera. \nHint: investigate _inside_ the model to see orientation changes. \n")
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viewer.core.show_lines = True
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viewer.callback_key_down = key_down
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viewer.core.camera_dnear = 3.9
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viewer.launch()
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