79 lines
2.5 KiB
JavaScript
79 lines
2.5 KiB
JavaScript
/**
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* @file 寻找关键点
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* @author mengke01(kekee000@gmail.com)
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*/
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define(
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function (require) {
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var reducePoints = require('graphics/image/contour/reducePoints');
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var findBreakPoints = require('graphics/image/contour/findBreakPoints');
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var pathUtil = require('graphics/pathUtil');
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var data = require('demo/../data/image-contours-circle');
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var entry = {
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/**
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* 初始化
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*/
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init: function () {
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var breakPoints = [];
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var html = '';
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data.forEach(function(c) {
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c.splice(c.length - 1, 1);
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});
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data.forEach(function (contour) {
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contour.forEach(function(p) {
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html += '<i style="left:'+p.x+'px;top:'+p.y+'px;"></i>';
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});
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});
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$('#points').html(html);
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data.forEach(function (contour) {
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pathUtil.scale(contour, 2);
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var ctr = reducePoints(contour, 0, contour.length - 1, 2);
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var points = findBreakPoints(ctr, 2);
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breakPoints = breakPoints.concat(ctr);
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pathUtil.scale(contour, 0.5);
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});
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html = '';
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for (var i = 0, l = breakPoints.length; i < l; i++) {
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var c = "";
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var p = breakPoints[i];
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if (p.breakPoint) {
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c = 'break';
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}
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else if (p.apex) {
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c = 'apex';
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}
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else if(p.inflexion) {
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c = 'inflexion';
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}
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else if(p.tangency) {
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c = 'tangency';
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}
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var width = '';
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if (p.right == 1) {
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width = 'width: 4px;height: 4px';
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}
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html += '<i data-index="'+ p.index +'" data-pdist="'+ (p.pdist / 2)+'" data-ndist="'+(p.ndist/2) +'"'
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+ (p.ntiny || p.ptiny ? 'data-tiny="1"' : '')
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+ (p.tangency ? 'data-tangency="1"' : '')
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+ (p.visited ? 'data-visited="1"' : '') +' title="'+ p.theta +'" style="left:'+p.x+'px;top:'+p.y+'px;'+width+'" class="'+c+'"></i>';
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}
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$('#points-break').html(html);
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}
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};
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entry.init();
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return entry;
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}
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);
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