Python的VTK Demo，比较全。

#!/usr/bin/env python # -*- coding: utf-8 -*- """ ========================================================================= Program: Visualization Toolkit Module: NamedColorPatches.py Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen All rights reserved. See Copyright.txt or http://www.kitware.com/Copyright.htm for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the above copyright notice for more information. ========================================================================= Produce a HTML page called VTKNamedColorPatches.html showing the available colors in vtkNamedColors. It also shows how to select the text color based on luminance. In this case Digital CCIR601 is used which gives less weight to the red and blue components of a color. """ from __future__ import print_function import vtk def RGBToHTMLColor(rgb): """ Convert an [R, G, B] list to #RRGGBB. :param: rgb - The elements of the array rgb are unsigned chars (0..255). :return: The html color. """ hexcolor = "#" + ''.join(['{:02x}'.format(x) for x in rgb]) return hexcolor def HTMLColorToRGB(colorString): """ Convert #RRGGBB to a [R, G, B] list. :param: colorString a string in the form: #RRGGBB where RR, GG, BB are hexadecimal. The elements of the array rgb are unsigned chars (0..255). :return: The red, green and blue components as a list. """ colorString = colorString.strip() if colorString[0] == '#': colorString = colorString[1:] if len(colorString) != 6: raise ValueError("Input #%s is not in #RRGGBB format" % colorString) r, g, b = colorString[:2], colorString[2:4], colorString[4:] r, g, b = [int(n, 16) for n in (r, g, b)] return [r, g, b] def RGBToLumaCCIR601(rgb): """ RGB -> Luma conversion Digital CCIR601 (gives less weight to the R and B components) :param: rgb - The elements of the array rgb are unsigned chars (0..255). :return: The luminance. """ Y = 0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2] return Y def FormatRGBForHTML(rgb): """ Format the rgb colors for display on a html table. :param: rgb - The elements of the array rgb are unsigned chars (0..255). :return: A formatted string for the html table. """ s = ','.join(['{:3d}'.format(x) for x in rgb]) s = s.replace(' ', ' ') s = s.replace(',', '  ') return s class HTMLTableMaker(object): """ This class creates HTML Tables displaying all the colors in the class vtkNamedColors grouped by various categories. """ def __init__(self): self.cn = { 'Red': ['IndianRed', 'LightCoral', 'Salmon', 'DarkSalmon', 'LightSalmon', 'Red', 'Crimson', 'FireBrick', 'DarkRed'], 'Pink': ['Pink', 'LightPink', 'HotPink', 'DeepPink', 'MediumVioletRed', 'PaleVioletRed'], 'Orange': ['LightSalmon', 'Coral', 'Tomato', 'OrangeRed', 'DarkOrange', 'Orange'], 'Yellow': ['Gold', 'Yellow', 'LightYellow', 'LemonChiffon', 'LightGoldenrodYellow', 'PapayaWhip', 'Moccasin', 'PeachPuff', 'PaleGoldenrod', 'Khaki', 'DarkKhaki'], 'Purple': ['Lavender', 'Thistle', 'Plum', 'Violet', 'Orchid', 'Fuchsia', 'Magenta', 'MediumOrchid', 'MediumPurple', 'BlueViolet', 'DarkViolet', 'DarkOrchid', 'DarkMagenta', 'Purple', 'Indigo', 'DarkSlateBlue', 'SlateBlue', 'MediumSlateBlue'], 'Green': ['GreenYellow', 'Chartreuse', 'LawnGreen', 'Lime', 'LimeGreen', 'PaleGreen', 'LightGreen', 'MediumSpringGreen', 'SpringGreen', 'MediumSeaGreen', 'SeaGreen', 'ForestGreen', 'Green', 'DarkGreen', 'YellowGreen', 'OliveDrab', 'Olive', 'DarkOliveGreen', 'MediumAquamarine', 'DarkSeaGreen', 'LightSeaGreen', 'DarkCyan', 'Teal'], 'Blue/Cyan': ['Aqua', 'Cyan', 'LightCyan', 'PaleTurquoise', 'Aquamarine', 'Turquoise', 'MediumTurquoise', 'DarkTurquoise', 'CadetBlue', 'SteelBlue', 'LightSteelBlue', 'PowderBlue', 'LightBlue', 'SkyBlue', 'LightSkyBlue', 'DeepSkyBlue', 'DodgerBlue', 'CornflowerBlue', 'RoyalBlue', 'Blue', 'MediumBlue', 'DarkBlue', 'Navy', 'MidnightBlue'], 'Brown': ['Cornsilk', 'BlanchedAlmond', 'Bisque', 'NavajoWhite', 'Wheat', 'BurlyWood', 'Tan', 'RosyBrown', 'SandyBrown', 'Goldenrod', 'DarkGoldenrod', 'Peru', 'Chocolate', 'SaddleBrown', 'Sienna', 'Brown', 'Maroon'], 'White': ['White', 'Snow', 'Honeydew', 'MintCream', 'Azure', 'AliceBlue', 'GhostWhite', 'WhiteSmoke', 'Seashell', 'Beige', 'OldLace', 'FloralWhite', 'Ivory', 'AntiqueWhite', 'Linen', 'LavenderBlush', 'MistyRose'], 'Gray': ['Gainsboro', 'LightGrey', 'Silver', 'DarkGray', 'Gray', 'DimGray', 'LightSlateGray', 'SlateGray', 'DarkSlateGray', 'Black'] } # Ordering of the tables and when to start and end a column of tables # in the layout. self.cnOrder = ['Red', 'Pink', 'Orange', 'Yellow', 'Purple', 'Green', 'Blue/Cyan', 'Brown', 'White', 'Gray'] self.cnStartTable = ['Red', 'Green', 'Brown'] self.cnEndTable = ['Purple', 'Blue/Cyan', 'Gray'] self.vtkcn = { 'Whites': ['antique_white', 'azure', 'bisque', 'blanched_almond', 'cornsilk', 'eggshell', 'floral_white', 'gainsboro', 'ghost_white', 'honeydew', 'ivory', 'lavender', 'lavender_blush', 'lemon_chiffon', 'linen', 'mint_cream', 'misty_rose', 'moccasin', 'navajo_white', 'old_lace', 'papaya_whip', 'peach_puff', 'seashell', 'snow', 'thistle', 'titanium_white', 'wheat', 'white', 'white_smoke', 'zinc_white'], 'Greys': ['cold_grey', 'dim_grey', 'grey', 'light_grey', 'slate_grey', 'slate_grey_dark', 'slate_grey_light', 'warm_grey'], 'Blacks': ['black', 'ivory_black', 'lamp_black'], 'Reds': ['alizarin_crimson', 'brick', 'cadmium_red_deep', 'coral', 'coral_light', 'deep_pink', 'english_red', 'firebrick', 'geranium_lake', 'hot_pink', 'indian_red', 'light_salmon', 'madder_lake_deep', 'maroon', 'pink', 'pink_light', 'raspberry', 'red', 'rose_madder', 'salmon', 'tomato', 'venetian_red'], 'Browns': ['beige', 'brown', 'brown_madder', 'brown_ochre', 'burlywood', 'burnt_sienna', 'burnt_umber', 'chocolate', 'deep_ochre', 'flesh', 'flesh_ochre', 'gold_ochre', 'greenish_umber', 'khaki', 'khaki_dark', 'light_beige', 'peru', 'rosy_brown', 'raw_sienna', 'raw_umber', 'sepia', 'sienna', 'saddle_brown', 'sandy_brown', 'tan', 'van_dyke_brown'], 'Oranges': ['cadmium_orange', 'cadmium_red_light', 'carrot', 'dark_orange', 'mars_orange', 'mars_yellow', 'orange', 'orange_red', 'yellow_ochre'], 'Yellows': ['aureoline_yellow', 'banana', 'cadmium_lemon', 'cadmium_yellow', 'cadmium_yellow_light', '