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plot3D.py
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plot3D.py
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import numpy as np
from IPython.display import IFrame
from matplotlib import pyplot as plt
def array_to_color(array, cmap="Oranges"):
s_m = plt.cm.ScalarMappable(cmap=cmap)
return s_m.to_rgba(array)[:,:-1]
TEMPLATE_POINTS = """
<!DOCTYPE html>
<head>
<title>PyntCloud</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {{
color: #cccccc;
font-family: Monospace;
font-size: 13px;
text-align: center;
background-color: #050505;
margin: 0px;
overflow: hidden;
}}
#logo_container {{
position: absolute;
top: 0px;
width: 100%;
}}
.logo {{
max-width: 20%;
}}
</style>
</head>
<body>
<div>
<img class="logo" src="https://media.githubusercontent.com/media/daavoo/pyntcloud/master/docs/data/pyntcloud.png">
</div>
<div id="container">
</div>
<script src="http://threejs.org/build/three.js"></script>
<script src="http://threejs.org/examples/js/Detector.js"></script>
<script src="http://threejs.org/examples/js/controls/OrbitControls.js"></script>
<script src="http://threejs.org/examples/js/libs/stats.min.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, scene, renderer;
var points;
init();
animate();
function init() {{
var camera_x = {camera_x};
var camera_y = {camera_y};
var camera_z = {camera_z};
var look_x = {look_x};
var look_y = {look_y};
var look_z = {look_z};
var positions = new Float32Array({positions});
var colors = new Float32Array({colors});
var points_size = {points_size};
var axis_size = {axis_size};
container = document.getElementById( 'container' );
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 90, window.innerWidth / window.innerHeight, 0.1, 1000 );
camera.position.x = camera_x;
camera.position.y = camera_y;
camera.position.z = camera_z;
camera.up = new THREE.Vector3( 0, 0, 1 );
if (axis_size > 0){{
var axisHelper = new THREE.AxisHelper( axis_size );
scene.add( axisHelper );
}}
var geometry = new THREE.BufferGeometry();
geometry.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );
geometry.addAttribute( 'color', new THREE.BufferAttribute( colors, 3 ) );
geometry.computeBoundingSphere();
var material = new THREE.PointsMaterial( {{ size: points_size, vertexColors: THREE.VertexColors }} );
points = new THREE.Points( geometry, material );
scene.add( points );
renderer = new THREE.WebGLRenderer( {{ antialias: false }} );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.target.copy( new THREE.Vector3(look_x, look_y, look_z) );
camera.lookAt( new THREE.Vector3(look_x, look_y, look_z));
container.appendChild( renderer.domElement );
window.addEventListener( 'resize', onWindowResize, false );
}}
function onWindowResize() {{
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}}
function animate() {{
requestAnimationFrame( animate );
render();
}}
function render() {{
renderer.render( scene, camera );
}}
</script>
</body>
</html>
"""
def plot_points(xyz, colors=None, size=0.1, axis=False):
positions = xyz.reshape(-1).tolist()
camera_position = xyz.max(0) + abs(xyz.max(0))
look = xyz.mean(0)
if colors is None:
colors = [1,0.5,0] * len(positions)
elif len(colors.shape) > 1:
colors = colors.reshape(-1).tolist()
if axis:
axis_size = xyz.ptp() * 1.5
else:
axis_size = 0
with open("plot_points.html", "w") as html:
html.write(TEMPLATE_POINTS.format(
camera_x=camera_position[0],
camera_y=camera_position[1],
camera_z=camera_position[2],
look_x=look[0],
look_y=look[1],
look_z=look[2],
positions=positions,
colors=colors,
points_size=size,
axis_size=axis_size))
return IFrame("plot_points.html",width=800, height=800)
TEMPLATE_VG = """
<!DOCTYPE html>
<head>
<title>PyntCloud</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {{
color: #cccccc;font-family: Monospace;
font-size: 13px;
text-align: center;
background-color: #050505;
margin: 0px;
overflow: hidden;
}}
#logo_container {{
position: absolute;
top: 0px;
width: 100%;
}}
.logo {{
max-width: 20%;
}}
</style>
</head>
<body>
<div>
<img class="logo" src="https://media.githubusercontent.com/media/daavoo/pyntcloud/master/docs/data/pyntcloud.png">
</div>
<div id="container">
</div>
<script src="http://threejs.org/build/three.js"></script>
<script src="http://threejs.org/examples/js/Detector.js"></script>
<script src="http://threejs.org/examples/js/controls/OrbitControls.js"></script>
<script src="http://threejs.org/examples/js/libs/stats.min.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, scene, renderer;
var points;
init();
animate();
function init() {{
var camera_x = {camera_x};
var camera_y = {camera_y};
var camera_z = {camera_z};
var look_x = {look_x};
var look_y = {look_y};
var look_z = {look_z};
var X = new Float32Array({X});
var Y = new Float32Array({Y});
var Z = new Float32Array({Z});
var R = new Float32Array({R});
var G = new Float32Array({G});
var B = new Float32Array({B});
var S_x = {S_x};
var S_y = {S_y};
var S_z = {S_z};
var n_voxels = {n_voxels};
var axis_size = {axis_size};
container = document.getElementById( 'container' );
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 90, window.innerWidth / window.innerHeight, 0.1, 1000 );
camera.position.x = camera_x;
camera.position.y = camera_y;
camera.position.z = camera_z;
camera.up = new THREE.Vector3( 0, 0, 1 );
if (axis_size > 0){{
var axisHelper = new THREE.AxisHelper( axis_size );
scene.add( axisHelper );
}}
var geometry = new THREE.BoxGeometry( S_x, S_z, S_y );
for ( var i = 0; i < n_voxels; i ++ ) {{
var mesh = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial() );
mesh.material.color.setRGB(R[i], G[i], B[i]);
mesh.position.x = X[i];
mesh.position.y = Y[i];
mesh.position.z = Z[i];
scene.add(mesh);
}}
renderer = new THREE.WebGLRenderer( {{ antialias: false }} );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.target.copy( new THREE.Vector3(look_x, look_y, look_z) );
camera.lookAt( new THREE.Vector3(look_x, look_y, look_z));
container.appendChild( renderer.domElement );
window.addEventListener( 'resize', onWindowResize, false );
}}
function onWindowResize() {{
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}}
function animate() {{
requestAnimationFrame( animate );
render();
}}
function render() {{
renderer.render( scene, camera );
}}
</script>
</body>
</html>
"""
def plot_voxelgrid(v_grid, cmap="Oranges", axis=False):
scaled_shape = v_grid.shape / min(v_grid.shape)
# coordinates returned from argwhere are inversed so use [:, ::-1]
points = np.argwhere(v_grid.vector)[:, ::-1] * scaled_shape
s_m = plt.cm.ScalarMappable(cmap=cmap)
rgb = s_m.to_rgba(v_grid.vector.reshape(-1)[v_grid.vector.reshape(-1) > 0])[:,:-1]
camera_position = points.max(0) + abs(points.max(0))
look = points.mean(0)
if axis:
axis_size = points.ptp() * 1.5
else:
axis_size = 0
with open("plotVG.html", "w") as html:
html.write(TEMPLATE_VG.format(
camera_x=camera_position[0],
camera_y=camera_position[1],
camera_z=camera_position[2],
look_x=look[0],
look_y=look[1],
look_z=look[2],
X=points[:,0].tolist(),
Y=points[:,1].tolist(),
Z=points[:,2].tolist(),
R=rgb[:,0].tolist(),
G=rgb[:,1].tolist(),
B=rgb[:,2].tolist(),
S_x=scaled_shape[0],
S_y=scaled_shape[2],
S_z=scaled_shape[1],
n_voxels=sum(v_grid.vector.reshape(-1) > 0),
axis_size=axis_size))
return IFrame("plotVG.html",width=800, height=800)