【问题标题】:Scaling multiple paths with raphael使用 raphael 缩放多条路径
【发布时间】:2011-03-22 03:06:08
【问题描述】:

我正在尝试使用 Raphael 在网页中创建类似于此example 的地图工具。

我有一个我要使用的地图的svg文件,文件中的省份都是单独的路径。但是,如果我将 svg 文件中的坐标直接复制到 raphael 路径,则图像太大而无法适应屏幕,因此我需要对其进行缩放。

我知道我可以使用缩放功能单独缩放所有省份路径,但它们将不再相互接触,我必须四处移动它们以重新组合地图。

有没有办法将路径组合在一起并缩放整个东西,或者是否有一些聪明的工具来缩放原始 svg 文件? Inkscape 缩放似乎不会修改 svg 文件中的坐标。

谢谢。

来源:

window.onload=function(){
  var paper = new Raphael(document.getElementById('canvas_container'),2000,4000);

  var province = {}
    province.a = paper.path("M 1195.23,2765.05 1176.44,2753.8 1182.93,2743.86 1198.21,2745.13 1201.92,2738.14 1239.79,2738.32 1263.62,2752.62 1284.76,2743.95 1317.8,2750.74 1367.35,2746.42 1392.66,2715.11 1400.21,2696.4 1414.4,2707.23 1451.71,2707 1456.53,2690.06 1486.98,2691.43 1517.68,2681.6 1536.64,2650.12 1560.81,2641.94 1566.44,2625.91 1655.76,2577.95 1652.86,2580.91 1640.92,2614.69 1610.92,2642.31 1590.74,2684.67 1565.32,2702.68 1559.58,2720.44 1521.84,2784.07 1477.67,2814.72 1461.87,2821.15 1442.9,2853.64 1440.5,2874.94 1420.09,2879.49 1381.85,2912.96 1374.51,2932.58 1336.52,2969.11 1318.56,2959.93 1310.72,2940.64 1294.49,2938.23 1287.2,2923.45 1265.55,2923.98 1246.43,2913.8 1239.54,2901.7 1213.98,2894.24 1206.33,2881.17 1214.32,2876.4 1199.89,2858.79 1204.99,2841.58 1220.87,2835.67 1210.72,2812.63 1232.15,2807.48 1225.15,2793.26 1231.23,2781.47 1213.41,2762.4 1195.23,2765.05 z");
    province.b = paper.path("M 1050.73,2867.78 1046.35,2845.33 1040.53,2832.74 1044.23,2819.35 1066.03,2819.42 1087.07,2805.18 1094.97,2784.45 1104.23,2779.31 1115.05,2774.95 1131.12,2800.44 1146.19,2792.66 1146.45,2777.1 1166.57,2777.52 1166.63,2804.27 1194.54,2818.11 1210.74,2812.67 1220.87,2835.67 1204.99,2841.58 1199.89,2858.79 1214.32,2876.4 1206.33,2881.17 1213.98,2894.24 1239.54,2901.7 1246.43,2913.8 1265.55,2923.98 1287.2,2923.45 1294.49,2938.23 1310.72,2940.64 1318.56,2959.93 1336.52,2969.11 1320.71,2984.32 1320.22,2994.45 1309.88,3001.29 1297.83,2993.4 1293.02,2997.09 1289.27,3013.92 1283.96,3022.6 1275.93,3022.85 1266.2,3024.26 1259.83,3020.74 1253.98,3024.67 1246.93,3031.3 1237.88,3017.88 1214.41,3015.12 1185.95,3005.82 1174.43,3017.4 1174.77,3035.97 1170.62,3043.42 1158.95,3043.06 1145.56,3029.7 1137.74,3036.82 1127.73,3037.17 1121.47,3030.56 1114.84,3035.16 1101.49,3035.03 1102.89,3011.96 1123.59,2990.26 1137.04,2989.94 1130.85,2973.55 1120.31,2972.88 1114.08,2984.93 1100.47,2983.63 1095.19,2970.61 1085.65,2970.31 1077.68,2950.18 1061.43,2942.38 1057.59,2940.54 1055.36,2924.83 1041.79,2915.84 1041.19,2898.89 1048.93,2884.2 1032.89,2877.32 1038.29,2867.02 1050.73,2867.78 z");


province.a.scale(.5, .5);  
province.b.scale(.5, .5);  }

【问题讨论】:

  • 你的 pathString 中不应该有其他字母吗? “,”代表“L”吗?
  • , 仅分隔 x 和 y 坐标,但如果坐标对之间没有字母,则代码似乎默认放入 L。如果我将字符串替换为:M 1195.23,2765.05 L 1176.44,2753.8 L 1182.93,2743.86 ... ...,效果是一样的

标签: javascript svg scale raphael


【解决方案1】:

scale 可以接受四个参数:

scale(x, y, cx, cy);

其中cx 和cy 是缩放中心的坐标。默认情况下,它位于形状的中间。因此,要缩放两个形状,您需要相对于同一中心进行缩放。

【讨论】:

  • scale + translate 将重新调整路径,Dmitry 非常感谢 Raphael :-)
  • 是否有示例说明如何使用 cx 和 cy 坐标?谢谢!
  • @Curious2learn: 0, 0 为我工作。例如 scale(0.5, 0.5, 0, 0)。
【解决方案2】:

你可以像这样加入你的 2 路径:

province.a = paper.path("M 1195.23,2765.05 1176.44,2753.8 1182.93,2743.86 1198.21,2745.13 1201.92,2738.14 1239.79,2738.32 1263.62,2752.62 1284.76,2743.95 1317.8,2750.74 1367.35,2746.42 1392.66,2715.11 1400.21,2696.4 1414.4,2707.23 1451.71,2707 1456.53,2690.06 1486.98,2691.43 1517.68,2681.6 1536.64,2650.12 1560.81,2641.94 1566.44,2625.91 1655.76,2577.95 1652.86,2580.91 1640.92,2614.69 1610.92,2642.31 1590.74,2684.67 1565.32,2702.68 1559.58,2720.44 1521.84,2784.07 1477.67,2814.72 1461.87,2821.15 1442.9,2853.64 1440.5,2874.94 1420.09,2879.49 1381.85,2912.96 1374.51,2932.58 1336.52,2969.11 1318.56,2959.93 1310.72,2940.64 1294.49,2938.23 1287.2,2923.45 1265.55,2923.98 1246.43,2913.8 1239.54,2901.7 1213.98,2894.24 1206.33,2881.17 1214.32,2876.4 1199.89,2858.79 1204.99,2841.58 1220.87,2835.67 1210.72,2812.63 1232.15,2807.48 1225.15,2793.26 1231.23,2781.47 1213.41,2762.4 1195.23,2765.05 M 1050.73,2867.78 1046.35,2845.33 1040.53,2832.74 1044.23,2819.35 1066.03,2819.42 1087.07,2805.18 1094.97,2784.45 1104.23,2779.31 1115.05,2774.95 1131.12,2800.44 1146.19,2792.66 1146.45,2777.1 1166.57,2777.52 1166.63,2804.27 1194.54,2818.11 1210.74,2812.67 1220.87,2835.67 1204.99,2841.58 1199.89,2858.79 1214.32,2876.4 1206.33,2881.17 1213.98,2894.24 1239.54,2901.7 1246.43,2913.8 1265.55,2923.98 1287.2,2923.45 1294.49,2938.23 1310.72,2940.64 1318.56,2959.93 1336.52,2969.11 1320.71,2984.32 1320.22,2994.45 1309.88,3001.29 1297.83,2993.4 1293.02,2997.09 1289.27,3013.92 1283.96,3022.6 1275.93,3022.85 1266.2,3024.26 1259.83,3020.74 1253.98,3024.67 1246.93,3031.3 1237.88,3017.88 1214.41,3015.12 1185.95,3005.82 1174.43,3017.4 1174.77,3035.97 1170.62,3043.42 1158.95,3043.06 1145.56,3029.7 1137.74,3036.82 1127.73,3037.17 1121.47,3030.56 1114.84,3035.16 1101.49,3035.03 1102.89,3011.96 1123.59,2990.26 1137.04,2989.94 1130.85,2973.55 1120.31,2972.88 1114.08,2984.93 1100.47,2983.63 1095.19,2970.61 1085.65,2970.31 1077.68,2950.18 1061.43,2942.38 1057.59,2940.54 1055.36,2924.83 1041.79,2915.84 1041.19,2898.89 1048.93,2884.2 1032.89,2877.32 1038.29,2867.02 1050.73,2867.78 z");

但是那样你就只有一个省了...

【讨论】:

  • 是的,这并不好,因为我希望稍后能够选择和突出显示各个省份,就像在 raphael 示例中一样。
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