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308 lines
6.8 KiB
308 lines
6.8 KiB
{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"import pybindmagic"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"%%cpp -f hello_world\n",
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"\n",
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"void hello_world()\n",
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"{\n",
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" py::print(\"Hello World\");\n",
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"}"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"hello_world()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"%%cpp -f callothercell -f callthiscell\n",
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"\n",
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"void hello_world();\n",
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"\n",
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"void callthiscell()\n",
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"{\n",
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" py::print(\"In this cell\");\n",
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"}\n",
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"\n",
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"void callothercell()\n",
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"{\n",
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" py::print(\"From Other Cell:\");\n",
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" hello_world();\n",
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"}"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"callthiscell()\n",
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"\n",
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"callothercell()\n",
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"#try to update the first cell an run callothercell() again"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"%%cpp -f generateMesh\n",
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"#include <pybind11/eigen.h>\n",
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"\n",
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"std::tuple<Eigen::MatrixXd,Eigen::MatrixXi> generateMesh()\n",
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"{\n",
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" // Inline mesh of a cube\n",
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" const Eigen::MatrixXd V = (Eigen::MatrixXd(8,3)<<\n",
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" 0.0,0.0,0.0,\n",
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" 0.0,0.0,1.0,\n",
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" 0.0,1.0,0.0,\n",
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" 0.0,1.0,1.0,\n",
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" 1.0,0.0,0.0,\n",
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" 1.0,0.0,1.0,\n",
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" 1.0,1.0,0.0,\n",
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" 1.0,1.0,1.0).finished();\n",
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" const Eigen::MatrixXi F = (Eigen::MatrixXi(12,3)<<\n",
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" 1,7,5,\n",
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" 1,3,7,\n",
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" 1,4,3,\n",
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" 1,2,4,\n",
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" 3,8,7,\n",
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" 3,4,8,\n",
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" 5,7,8,\n",
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" 5,8,6,\n",
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" 1,5,6,\n",
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" 1,6,2,\n",
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" 2,6,8,\n",
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" 2,8,4).finished().array()-1;\n",
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" return std::make_tuple(V,F);\n",
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"}"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"scrolled": true
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},
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"outputs": [],
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"source": [
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"V,F = generateMesh()\n",
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"print(\"Vertices:\\n\",V)\n",
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"print(\"Faces:\\n\",F)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"%%cpp\n",
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"#include <pybind11/eigen.h>\n",
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"\n",
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"\n",
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"std::tuple<Eigen::MatrixXd,Eigen::MatrixXi> generateMesh()\n",
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"{\n",
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" // Inline mesh of a cube\n",
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" const Eigen::MatrixXd V = (Eigen::MatrixXd(8,3)<<\n",
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" 0.0,0.0,0.0,\n",
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" 0.0,0.0,1.0,\n",
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" 0.0,1.0,0.0,\n",
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" 0.0,1.0,1.0,\n",
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" 1.0,0.0,0.0,\n",
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" 1.0,0.0,1.0,\n",
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" 1.0,1.0,0.0,\n",
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" 1.0,1.0,1.0).finished();\n",
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" const Eigen::MatrixXi F = (Eigen::MatrixXi(12,3)<<\n",
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" 1,7,5,\n",
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" 1,3,7,\n",
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" 1,4,3,\n",
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" 1,2,4,\n",
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" 3,8,7,\n",
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" 3,4,8,\n",
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" 5,7,8,\n",
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" 5,8,6,\n",
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" 1,5,6,\n",
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" 1,6,2,\n",
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" 2,6,8,\n",
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" 2,8,4).finished().array()-1;\n",
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" return std::make_tuple(V,F);\n",
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"}\n",
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"\n",
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"void printMesh(Eigen::MatrixXd V,Eigen::MatrixXi F)\n",
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"{\n",
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" py::print(\"Vertices:\\n\", V);\n",
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" py::print(\"Faces:\\n\", F);\n",
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"}\n",
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"\n",
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"defs\n",
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" m.def(\"generateMesh\",&generateMesh);\n",
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" m.def(\"printMesh\",&printMesh);"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"printMesh(*generateMesh())"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# CMAKE example\n",
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"\n",
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"Take a look at _pathtocmake/CMAKEList.txt_. Its a template cmake file. Make sure that the following lines are present:\n",
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"\n",
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"```\n",
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"project({name} LANGUAGES CXX)\n",
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"\n",
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"find_package(Python COMPONENTS Interpreter Development REQUIRED)\n",
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"add_subdirectory(pybind11)\n",
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"pybind11_add_module(${PROJECT_NAME} ${SRCFILES})\n",
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"```\n",
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"\n",
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"This example needs libigl in the pathtocmake folder. Clone it using:\n",
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"\n",
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"`git clone https://github.com/libigl/libigl.git`"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"%%cpp -c pathtocmake -f viewMesh -rebuild\n",
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"\n",
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"#include <igl/opengl/glfw/Viewer.h>\n",
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"#include <pybind11/eigen.h>\n",
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"\n",
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"\n",
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"void viewMesh(Eigen::Matrix<double, Eigen::Dynamic, 3> V, Eigen::Matrix<int, Eigen::Dynamic, 3> F)\n",
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"{\n",
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" // Plot the mesh\n",
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" igl::opengl::glfw::Viewer viewer;\n",
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" viewer.data().set_mesh(V, F);\n",
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" viewer.data().set_face_based(true);\n",
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" viewer.launch();\n",
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"}"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"import numpy as np\n",
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"\n",
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"V = np.array([\n",
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" [0.0,0.0,0.0],\n",
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" [0.0,0.0,1.0],\n",
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" [0.0,1.0,0.0],\n",
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" [0.0,1.0,1.0],\n",
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" [1.0,0.0,0.0],\n",
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" [1.0,0.0,1.0],\n",
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" [1.0,1.0,0.0],\n",
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" [1.0,1.0,1.0]])\n",
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"\n",
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"F = np.array(\n",
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" [\n",
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" [1,7,5],\n",
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" [1,3,7],\n",
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" [1,4,3],\n",
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" [1,2,4],\n",
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" [3,8,7],\n",
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" [3,4,8],\n",
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" [5,7,8],\n",
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" [5,8,6],\n",
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" [1,5,6],\n",
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" [1,6,2],\n",
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" [2,6,8],\n",
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" [2,8,4]\n",
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" ], dtype=np.int32)-1\n",
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"viewMesh(V,F)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"@webio": {
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"lastCommId": null,
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"lastKernelId": null
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},
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.8.3"
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},
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"latex_envs": {
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"LaTeX_envs_menu_present": true,
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"autoclose": false,
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"autocomplete": true,
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"bibliofile": "biblio.bib",
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"cite_by": "apalike",
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"current_citInitial": 1,
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"eqLabelWithNumbers": true,
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"eqNumInitial": 1,
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"hotkeys": {
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"equation": "Ctrl-E",
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"itemize": "Ctrl-I"
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},
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"labels_anchors": false,
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"latex_user_defs": false,
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"report_style_numbering": false,
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"user_envs_cfg": false
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}
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