Openlayers get scale from scaleline

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August undefined, 2024

Webscale {Float} Factor by which to scale the geometry. A scale of 2 doubles the size of the geometry in each dimension (lines, for example, will be twice as long, and polygons will have four times the area). origin {OpenLayers.Geometry.Point} Point of origin for resizing: ratio {Float} Optional x:y ratio for resizing. Default ratio is 1.

Scale line example - GitHub Pages

http://terrestris.github.io/momo3-ws/en/openlayers/ol3/src/controls/scaleline.html I also try another method with scaleLineI have a map object: _map=new Map (..) _map.addControl (new Openlayers.Control.ScaleLine ()) but it shows 5000000km, is it a way to show it like 1:5M on the map. Please any helps! thx openlayers Share Follow edited Jul 12, 2024 at 21:06 asked Jul 11, 2024 at 22:09 lin 167 1 3 13 Add a comment 1 Answer davacki mk

Projection and Scale - OpenLayers

WebOpenLayers 3 provides an ol.control.ScaleLine for just this. Creating a ScaleLine Control Tasks Open the map.html in your text editor. Somewhere in the map config, add the following code to create a new scale line control for your map: controls: ol.control.defaults ().extend ( [ new ol.control.ScaleLine () ]), WebA control displaying rough y-axis distances, calculated for the center of the viewport. For conformal projections (e.g. EPSG:3857, the default view projection in OpenLayers), the … Web29 de out. de 2024 · getResolutionFromScaleWithProj = function(scale, proj){ var units = ol.proj.get(proj).getUnits(); var mpu = ol.proj.Units.METERS_PER_UNIT[units]; var dpi = … baukammer berlin seminare

How to get map units to find current scale in OpenLayers?

Web Scale line example Web5 de out. de 2024 · I tend to believe that the snippets posted here had configured things in a way to make them work with the broken ScaleLine in previous versions. Because if I add a ScaleLine to the Zoomify example, I get the expected result - no further configuration made, so 1 pixel equals 1 meter, and the scale line looks correct. davacki za vozila mkWeb26 de mar. de 2015 · How can I change the format of the scaleline in OpenLayers? I have a black background and I want to change the lines in the scalebar to white. I use: davacar sl

"Web14 de mar. de 2024 · 在CSS中，`link`和`import`都可以用于引入外部CSS文件，但它们之间有一些区别。 `link`是HTML中的一个标签，它用于在HTML文档中引入CSS文件。 " - Openlayers get scale from scaleline

Openlayers get scale from scaleline

WebProjection and Scale. projection 12 scale 4. View projection. Example of maintaining scale when changing projection. getPointResolution () is used to calculate the resolution for the … WebExample of using OpenLayers and d3 together. Data Tiles (data-tiles.html) Generating tile data from scratch. Device Orientation (device-orientation.html) Listen to DeviceOrientation events. Drag-and-Drop (drag-and-drop.html) Example of using the drag-and-drop interaction. Drag-and-Drop Image Vector (drag-and-drop-image-vector.html)

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Web31 de mai. de 2024 · The units are within the projection of the view. From a map object, you can get it using: See also the API documentation of the ol.proj.Projection#getUnits … WebOpenLayers. Control. ScaleLine The ScaleLine displays a small line indicator representing the current map scale on the map. By default it is drawn in the lower left corner of the map. Inherits from OpenLayers.Control Is a very close copy of OpenLayers.Control.Scale Summary Properties maxWidth {Integer} Maximum width of the scale line in pixels.

Web20 de ago. de 2015 · it shows 1000000 KM in scale line; added scale lin control as follows. var scaleLineControl = new ol.control.ScaleLine(); map.addControl(scaleLineControl); When I keep projection as default it gives proper scale line. How to achive correct scale line for other projections? When I am trying to get the extent of map I am getting array like WebOpenLayers Scale Line Control integrated in the canvas (for jpeg/png new CanvasScaleLine ( [options]) Parameters: See: http://www.kreidefossilien.de/webgis/dokumentation/beispiele/export-map-to-png-with-scale Extends ol.control.ScaleLine Methods setMap (map) Remove the control from its current …

WebDescription. target. Element string undefined. Specify a target if you want the control to be rendered outside of the map's viewport. className. string string [] undefined. Custom class name of the control container element. Default is ol-mapscale. scaleLineClassName. Web17 de ago. de 2024 · Openlayers ScaleLine component has a way to convert from resolution to scale, but what about the other way around? Our customers are choosing a scale for each layer, indicating the scale where the layer should be visible. That’s why I have to convert from scale to resolution. How to show or hide layers in OpenLayers?

WebOpenLayers.Control.Scale; Summary. OpenLayers. Control. ScaleLine: The ScaleLine displays a small line indicator representing the current map scale on the map. …

http://girona-openlayers-workshop.readthedocs.io/en/latest/controls/scaleline.html davadsvWebExample of printing a map to a specified scale. The print is exported as a PDF using the jsPDF library. Unlike the Export PDF example the on screen map is only used to set the center and rotation. The extent printed depends on the scale and page size. To print the scale bar and attributions the example uses the dom-to-image-more library. davackizavozilaWeb27 de jan. de 2024 · Open Layers 2 had a rather useful OpenLayers.Control.Scale()control, that would display the current "scale" relative to the projection bounds / zoom level. Such a control would also be useful in OL3. Likewise, a control that showed the current zoom level would also be useful. baukapazitätsmanagementWeb27 de jan. de 2024 · Open Layers 2 had a rather useful OpenLayers.Control.Scale() control, that would display the current "scale" relative to the projection bounds / zoom … davacki za vozilaWeb10 de dez. de 2024 · Openlayers ScaleLine component has a way to convert from resolution to scale, but what about the other way around? Our customers are choosing a … baukasten anzugWebprint 1 printing 1 scale 4 scaleline 2 export 3 pdf 2 grid 8 Page size Resolution Scale Export PDF Example of printing a map to a specified scale. The print is exported as a … davaci : k.hWebOpenLayers.Control.Scale; Summary. OpenLayers. Control. ScaleLine: The ScaleLine displays a small line indicator representing the current map scale on the map. Properties: ... ScaleLine: Create a new scale line control. Functions: draw {DOMElement} getBarLen: Given a number, round it down to the nearest 1,2,5 times a power of 10. baukasten