62 lines
1.1 KiB
JavaScript
62 lines
1.1 KiB
JavaScript
export default function(crs, denorm, point) {
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var xin = point.x,
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yin = point.y,
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zin = point.z || 0.0;
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var v, t, i;
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var out = {};
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for (i = 0; i < 3; i++) {
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if (denorm && i === 2 && point.z === undefined) {
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continue;
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}
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if (i === 0) {
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v = xin;
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if ("ew".indexOf(crs.axis[i]) !== -1) {
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t = 'x';
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} else {
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t = 'y';
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}
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}
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else if (i === 1) {
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v = yin;
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if ("ns".indexOf(crs.axis[i]) !== -1) {
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t = 'y';
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} else {
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t = 'x';
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}
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}
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else {
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v = zin;
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t = 'z';
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}
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switch (crs.axis[i]) {
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case 'e':
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out[t] = v;
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break;
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case 'w':
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out[t] = -v;
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break;
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case 'n':
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out[t] = v;
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break;
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case 's':
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out[t] = -v;
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break;
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case 'u':
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if (point[t] !== undefined) {
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out.z = v;
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}
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break;
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case 'd':
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if (point[t] !== undefined) {
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out.z = -v;
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}
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break;
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default:
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//console.log("ERROR: unknow axis ("+crs.axis[i]+") - check definition of "+crs.projName);
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return null;
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}
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}
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return out;
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}
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