source: gs3-extensions/map-editor/DrawingManager/checkpoints-singlefile/index backup v13.html@ 32709

Last change on this file since 32709 was 32709, checked in by ak19, 5 years ago

Jump-start to the map-editor extension, which takes account of the 21 previous check-point versions.
File size: 17.4 KB
Line 
1<!DOCTYPE html>
2<html>
3 <head>
4 <title>Drawing Tools</title>
5 <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
6 <meta charset="utf-8">
7 <style>
8 /* Always set the map height explicitly to define the size of the div
9 * element that contains the map. */
10 #map {
11 height: 83%;
12 width: 90;
13 float: bottom;
14 clear: both;
15 }
16 /* Optional: Makes the sample page fill the window. */
17 html, body {
18 height: 100%;
19 width: 99%;
20 margin: 0;
21 padding: 0;
22
23 }
24
25 #DeleteButtons{
26 display: inline-block;
27 float: left;
28 padding-left: 10px;
29 padding-top: 5px;
30 width: 100%
31
32 }
33
34 #LineThickness{
35 display: inline-block;
36 float: left;
37 padding-left: 10px;
38 padding-top: 5px;
39
40 }
41
42 #ColourOpacity{
43 display: inline-block;
44 float: left;
45 padding-left: 10px;
46 padding-top: 5px;
47
48 }
49
50 #buttons3{
51 display: inline-block;
52 float: left;
53 padding-left: 10px;
54 padding-top: 5px;
55
56 }
57
58 #FillColour {
59 display: inline-block;
60 float: left;
61 padding-left: 10px;
62 padding-top: 5px;
63 }
64
65 #color-palette1 {
66 clear: both;
67 }
68
69 .color-buttons1 {
70 width: 14px;
71 height: 14px;
72 font-size: 0;
73 margin: 2px;
74 float: left;
75 cursor: pointer;
76 }
77
78
79 </style>
80 </head>
81 <body>
82 <div id = "DeleteButtons">
83 <button onclick="removeLine()" accesskey="z">Delete Last</button>
84 <button onclick="deleteAllShape()" accesskey="c">Clear All</button>
85 <button onclick="deleteSelectedShape()" accesskey="b">Delete Selected</button>
86 <button onclick="polygonGetPath()" accesskey="n">Get Path</button>
87 <button onclick="undoMovement()" accesskey="n">Undo</button>
88 <button onclick="redoMovement()" accesskey="n">Redo</button>
89
90 </div>
91
92 <div id = "LineThickness">
93 <p>Line thickness: <input type="range" min="20" max="100" value="1" class="slider" id="thicknessRange"> </p>
94 <p>Value: <span id="thicknessRangeVal"></span></p>
95 </div>
96
97 <div id = "ColourOpacity">
98 <p>Colour opacity: <input type="range" min="10" max="100" value="40" class="slider" id="colourOpacity"> </p>
99 <p>Value: <span id="opacityRangeVal"></span></p>
100 </div>
101
102
103
104 <div id="FillColour">
105 <p> Fill Colour:</p> <div id="color-palette1"></div>
106 </div>
107
108
109
110 <div id="map"></div>
111
112 <script>
113 var debug = false;
114
115 var redoPressed = false;
116 var undoPressed = false;
117 var shiftKeyPressed = false;
118 var mousedDownFired = false;
119 var prevVertex = {lat:"" ,lng:""};
120 var nextVertex = {lat:"" ,lng:""};
121 var prevShape = [];
122 var nextShape = [];
123 var prevLog = [];
124 var nextLog = [];
125 var dragged = 0;
126 var colors = ['#1E90FF', '#FF1493', '#4B0082', '#32CD32', '#FF8C00', '#000000'];
127 var selectedColor;
128 var colorButtons = {};
129 var thicknessValue = 1;
130 var opacityValue = 0.4;
131 var polyOptions = {
132 fillColor: '#CA4A2F',
133 strokeWeight: thicknessValue,
134 fillOpacity: opacityValue,
135 editable: true,
136 draggable: true,
137 geodesic : false,
138 };
139
140
141 var overlays = [];
142 var drawingManager;
143 var selectedShape;
144 var selectedShapes = [];
145
146
147
148 //Update thickness
149 var thicknessSlider = document.getElementById("thicknessRange");
150 var thicknessSliderOutput = document.getElementById("thicknessRangeVal");
151 thicknessSliderOutput.innerHTML = thicknessSlider.value/20;
152
153 thicknessSlider.oninput = function() {
154 thicknessSliderOutput.innerHTML = this.value/20;
155 thicknessValue = this.value/20;
156 polyOptions.strokeWeight = thicknessValue;
157 setSelectedThickness(thicknessValue);
158 }
159
160 //Update opacity
161 var opacitySlider = document.getElementById("colourOpacity");
162 var opacitySliderOutput = document.getElementById("opacityRangeVal");
163 opacitySliderOutput.innerHTML = "% " + Math.round(opacitySlider.value);
164
165 opacitySlider.oninput = function() {
166 opacityValue = this.value/100;
167 polyOptions.fillOpacity = opacityValue;
168 opacitySliderOutput = opacityValue;
169 opacityRangeVal.innerHTML = "% " + Math.round( opacitySliderOutput * 100);
170 setSelectedOpacity(opacityValue);
171 }
172
173
174 ////////////////////////////////////////////////////////////////////////////////////////
175 function makeColorButton (color) {
176 var button = document.createElement('span');
177 button.className = 'color-buttons1';
178 button.style.backgroundColor = color;
179 google.maps.event.addDomListener(button, 'click', function () {
180 selectColor(color);
181 setSelectedShapeColor(color);
182 });
183 return button;
184 }
185 function buildColorPalette () {
186 var colorPalette = document.getElementById('color-palette1');
187 for (var i = 0; i < colors.length; ++i) {
188 var currColor = colors[i];
189 var colorButton = makeColorButton(currColor);
190 colorPalette.appendChild(colorButton);
191 colorButtons[currColor] = colorButton;
192 }
193 selectColor(colors[0]);
194 };
195 function selectColor (color) {
196 selectedColor = color;
197 for (var i = 0; i < colors.length; ++i) {
198 var currColor = colors[i];
199 colorButtons[currColor].style.border = currColor == color ? '2px solid #789' : '2px solid #fff';
200 }
201
202 // Retrieves the current options from the drawing manager and replaces the
203 // stroke or fill color as appropriate.
204 var polylineOptions = drawingManager.get('polylineOptions');
205 polylineOptions.strokeColor = color;
206 drawingManager.set('polylineOptions', polylineOptions);
207
208 var rectangleOptions = drawingManager.get('rectangleOptions');
209 rectangleOptions.fillColor = color;
210 drawingManager.set('rectangleOptions', rectangleOptions);
211
212 var circleOptions = drawingManager.get('circleOptions');
213 circleOptions.fillColor = color;
214 drawingManager.set('circleOptions', circleOptions);
215
216 var polygonOptions = drawingManager.get('polygonOptions');
217 polygonOptions.fillColor = color;
218 drawingManager.set('polygonOptions', polygonOptions);
219 }
220
221
222
223
224 function initMap() {
225
226 var map = new google.maps.Map(document.getElementById('map'), {
227 center: {lat: -34.397, lng: 150.644},
228 zoom: 2,
229 //mapTypeId: 'map'
230
231 });
232
233
234 drawingManager = new google.maps.drawing.DrawingManager({
235 drawingMode: google.maps.drawing.OverlayType.POLYGON,
236 drawingControl: true,
237 drawingControlOptions: {
238 position: google.maps.ControlPosition.TOP_CENTER,
239 drawingModes: ['marker', 'circle', 'polygon', 'polyline', 'rectangle']
240 },
241 markerOptions: { draggable: true},
242 circleOptions: polyOptions,
243 polylineOptions : polyOptions,
244 polygonOptions: polyOptions,
245 rectangleOptions: polyOptions,
246 });
247
248 drawingManager.setMap(map);
249
250
251 //overlays.push(event.overlay); // store reference to added overlay
252 google.maps.event.addListener(drawingManager, 'overlaycomplete', function (e) {
253 overlays.push(e.overlay); // store reference to added overlay
254 var newShape = e.overlay;
255 newShape.type = e.type;
256
257 if (e.type !== google.maps.drawing.OverlayType.MARKER) {
258
259 // Switch back to non-drawing mode after drawing a shape.
260 //drawingManager.setDrawingMode(null);
261
262 // Add an event listener that selects the newly-drawn shape when the user
263 // mouses down on it.
264 google.maps.event.addListener(newShape, 'click', function(e) {
265
266 vertexAndPolyDel(e,newShape);
267 mousedDownFired = false;
268 return;
269
270 });
271
272 //Stores past event information
273 google.maps.event.addListener(newShape, 'dragstart', function() {
274 //console.log("Drag Start");
275 if (selectedShape){
276 var lati, lngi;
277 for(var i = 0; i < selectedShape.getPath().length; i++) {
278 lati = selectedShape.getPath().getAt(i).lat();
279 lngi = selectedShape.getPath().getAt(i).lng();
280 //console.log("Vertex number",i, "'s latitude is", lati, "and longitude is", lngi);
281 prevVertex = {lat: lati, lng:lngi};
282 prevShape.push(prevVertex);
283 }
284
285 prevLog.push(prevShape);
286 prevShape = [];
287 nextLog = [];
288 //console.log("Prev Array Length",prevLog.length);
289 //console.log("Next Array Length",nextLog.length);
290 }
291 });
292
293 //Store information after the event ends
294 google.maps.event.addListener(newShape, 'dragend', function() {
295 //console.log("Drag End");
296 if (selectedShape){
297 var lati, lngi;
298
299 for(var i = 0; i < selectedShape.getPath().length; i++) {
300 lati = selectedShape.getPath().getAt(i).lat();
301 lngi = selectedShape.getPath().getAt(i).lng();
302 //console.log("Vertex number",i, "'s latitude is", lati, "and longitude is", lngi);
303 nextVertex = {lat: lati, lng:lngi};
304 nextShape.push(nextVertex);
305 }
306 nextLog.push(nextShape);
307 nextShape = [];
308 //console.log("Prev Array Length",prevLog.length);
309 //console.log("Next Array Length",nextLog.length);
310 }
311 });
312
313
314 //Add an event listener to select a shape if the mouse hovers over it
315 google.maps.event.addListener(newShape, 'mousedown', function(e) {
316 if(drawingManager.drawingMode == null) {
317 mousedDownFired =true;
318// console.log("MOUSDOWN ", e);
319
320 setSelection(newShape);
321 }
322 });
323 setSelection(newShape);
324 }
325 else {
326 //cLICK EVENT IF A MARKER IS CREATED
327 google.maps.event.addListener(newShape, 'click', function (e) {
328 setSelection(newShape);
329 });
330 setSelection(newShape);
331 }
332 });
333
334 //Deletes a vertex if clicked on it
335 function vertexAndPolyDel(e,newShape) {
336 var vertex = e.vertex;
337 if (e.vertex !== undefined) {
338 if (newShape.type === google.maps.drawing.OverlayType.POLYGON) {
339 var path = newShape.getPaths().getAt(e.path);
340 path.removeAt(e.vertex);
341 if (path.length < 3) {
342 newShape.setMap(null);
343 }
344 }
345 if (newShape.type === google.maps.drawing.OverlayType.POLYLINE) {
346 var path = newShape.getPath();
347 path.removeAt(e.vertex);
348 if (path.length < 2) {
349 newShape.setMap(null);
350 }
351 }
352 }
353
354 //if(mousedDownFired == false)
355 //{
356 //setSelection(newShape, vertex);
357 //mousedDownFired = false;
358 //return;
359 //}
360 }
361
362 function clearSelection () {
363 if (selectedShape) {
364 if (selectedShape.type !== 'marker') {
365 selectedShape.setEditable(false);
366 if(shiftKeyPressed == false){
367 for (var i=0; i < selectedShapes.length; i++) {
368 selectedShapes[i].setEditable(false);
369 }
370 selectedShapes = [];
371 }
372 }
373
374 selectedShape = null;
375 }
376 }
377 var i = 0;
378 function setSelection (shape, e) {
379 if (debug) {
380 console.log("setSelection() selectedShapes, len = " + selectedShapes.length);
381 }
382
383 if (shape.type !== 'marker') {
384 if(shiftKeyPressed == false) {
385 if(e == undefined) {
386 clearSelection();
387 shape.setEditable(true);
388 }
389
390 }
391
392 //var shapeAlreadySelected = selectedShapes.includes(shape);
393
394 if (selectedShapes.includes(shape)){
395 shape.setEditable(false);
396 selectedShapes.splice(shape, 1)
397 }
398
399 else {
400 shape.setEditable(true);
401 selectedShapes.push(shape);
402 }
403
404
405 //console.log(selectedShapes.length);
406
407 //Send the values to be updated
408 var thi = shape.strokeWeight;
409 var opa = shape.fillOpacity;
410 var fCol = shape.fillColor;
411 var sCol = shape.strokeColor;
412 updateMenuValues(thi, opa, fCol, sCol);
413
414 }
415 else if (shape.type == 'marker') {
416 clearSelection();
417 }
418
419 selectedShape = shape;
420 }
421
422
423 //Clears selection if clicked on the map when shift is not presseed
424 google.maps.event.addListener(map, 'click', function() {
425 if (shiftKeyPressed == false) {
426 clearSelection();
427 }
428 });
429
430
431
432
433 //Setting drawing tool option
434 document.addEventListener('keydown', function() {
435 //if (event.code == 'KeyX' && (event.ctrlKey || event.metaKey))
436 if (event.code == 'Digit0' || event.code == 'Numpad0' || event.code == 'Backquote') {
437 //clearSelection();
438 drawingManager.setDrawingMode(null);
439 } else if (event.code == 'Digit1') {
440 drawingManager.setDrawingMode('marker');
441 } else if (event.code == 'Digit2') {
442 drawingManager.setDrawingMode('circle');
443 } else if (event.code == 'Digit3') {
444 drawingManager.setDrawingMode('polygon');
445 } else if (event.code == 'Digit4') {
446 drawingManager.setDrawingMode('polyline');
447 } else if (event.code == 'Digit5' ) {
448 drawingManager.setDrawingMode('rectangle');
449 }
450// console.log(event.code);
451 });
452
453 //Sets shift as pressed
454 document.addEventListener('keydown', function() {
455 if (event.code == 'ShiftLeft' || event.code == 'ShiftRight')
456 {
457 shiftKeyPressed = true;
458
459 }
460
461 });
462
463 //Sets shift as unpressed
464 document.addEventListener('keyup', function() {
465 if (event.code == 'ShiftLeft' || event.code == 'ShiftRight')
466 {
467 shiftKeyPressed = false;
468 }
469
470 });
471
472
473 buildColorPalette();
474}
475 //Set selected thickness
476 function setSelectedThickness(sWeight) {
477 if (selectedShape){
478 selectedShape.set('strokeWeight', sWeight)
479 }
480 if(selectedShapes !== 0) {
481 for (var i=0; i < selectedShapes.length; i++) {
482 selectedShapes[i].set('strokeWeight', sWeight);
483 }
484 }
485 }
486
487 //Set selected opacity
488 function setSelectedOpacity(fOpacity) {
489 if (selectedShape) {
490 selectedShape.set('fillOpacity', fOpacity)
491 }
492 if(selectedShapes !== 0) {
493 for (var i=0; i < selectedShapes.length; i++) {
494 selectedShapes[i].set('fillOpacity', fOpacity);
495 }
496 }
497 }
498
499
500
501 //set selected fill colour
502 function setSelectedShapeColor (color) {
503 if (selectedShape) {
504 if (selectedShape.type == google.maps.drawing.OverlayType.POLYLINE) {
505 selectedShape.set('strokeColor', color);
506 } else {
507 selectedShape.set('fillColor', color);
508 selectedShape.set('strokeColor', color);
509 }
510 }
511 if(selectedShapes !== 0) {
512 for (var i=0; i < selectedShapes.length; i++) {
513 selectedShapes[i].set('fillColor', color);
514 selectedShapes[i].set('strokeColor', color);
515 }
516 }
517 }
518
519
520 function updateMenuValues(thi, opa, fCol, sCol){
521
522 //Update thickness slider and value on the settings menu
523 var thicknessSliderOutput = document.getElementById("thicknessRangeVal");
524 thicknessSliderOutput.innerHTML = thi;
525 document.getElementById("thicknessRange").value = thi*20;
526
527 //Update the opacity slider and value on the settings menu
528 var opacitySliderOutput = document.getElementById("opacityRangeVal");
529 opacitySliderOutput.innerHTML = "% " + opa*100;
530 document.getElementById("colourOpacity").value = opa*100;
531
532
533 if (drawingManager.drawingMode == null) {
534 selectColor(fCol);
535 }
536 }
537function undoMovement() {
538
539 var lastItem = prevLog[prevLog.length-1];
540 if (selectedShape){
541 if (prevLog.length !== 0){
542 nextLog.push(prevLog[prevLog.length-1]);
543
544 if (redoPressed == false){
545 selectedShape.setPath(prevLog[prevLog.length-1]);
546
547 console.log("Redo not pressed");
548 }
549 else {
550 selectedShape.setPath(prevLog[prevLog.length-2]);
551 console.log("Redo pressed");
552 }
553
554 undoPressed = false;
555 prevLog.pop();
556 undoPressed = true;
557
558 //console.log("Undo Array Length",prevLog.length);
559 //console.log(JSON.stringify(prevLog));
560 //console.log(JSON.stringify(nextLog));
561 }
562 }
563}
564
565function redoMovement() {
566
567 var rLastItem = prevLog[prevLog.length-1];
568 if (selectedShape){
569 if (nextLog.length > 1){
570 prevLog.push(nextLog[nextLog.length-1]);
571
572 if (undoPressed == false){
573 selectedShape.setPath(nextLog[nextLog.length-1]);
574
575 console.log("Undo not pressed");
576 }
577 else {
578 selectedShape.setPath(nextLog[nextLog.length-2]);
579 console.log("Undo pressed");
580 }
581 undoPressed = false;
582 nextLog.pop();
583 redoPressed = true;
584
585 //console.log("Redo Array Length",nextLog.length);
586 //console.log(JSON.stringify(prevLog));
587 //console.log(JSON.stringify(nextLog));
588 }
589 }
590}
591
592function polygonGetPath() {
593 if (selectedShape){
594 var lati, lngi;
595
596
597 for(var i = 0; i < selectedShape.getPath().length; i++) {
598 lati = selectedShape.getPath().getAt(i).lat();
599 lngi = selectedShape.getPath().getAt(i).lng();
600 console.log("Vertex number",i, "'s latitude is", lati, "and longitude is", lngi);
601
602 }
603 }
604
605}
606
607function deleteSelectedShape () {
608 for (var i=0; i < selectedShapes.length; i++){
609 selectedShapes[i].setMap(null);
610 }
611 selectedShapes = [];
612}
613
614function removeLine() {
615 var lastOverlay = overlays.pop();
616 if (lastOverlay) lastOverlay.setMap(null);
617 }
618
619function deleteAllShape() {
620 for (var i=0; i < overlays.length; i++) {
621 overlays[i].setMap(null);
622
623 }
624 overlays = [];
625}
626
627 </script>
628 <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBzunGwIF2OwsfrOkIC_8bhh0OPGZXo52Y&libraries=drawing&callback=initMap" async defer></script>
629 <script src="shortcuts.js"></script>
630 </body>
631</html>
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