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Adding scale text to our ArcGIS Online maps

TuridBrox

Is there a way to let the viewer see scale text (i. e. "1:1000") instead of just a scale bar in ArcGIS Online maps? We are using the Basic Viewer template with some minor modifications. We would want to use metres as the unit, if possible.

Even better: is there a way to let users choose a scale by selecting from a drop-down menu, or typing the numbers?

Any hints are appreciated 🙂

Thanks,
Turid

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Accepted answers

DavideLimosani

Is there a way to let the viewer see scale text (i. e. "1:1000") instead of just a scale bar in ArcGIS Online maps? We are using the Basic Viewer template with some minor modifications. We would want to use metres as the unit, if possible.

Even better: is there a way to let users choose a scale by selecting from a drop-down menu, or typing the numbers?

Any hints are appreciated 🙂

Thanks,
Turid

Hi,

use map.getScale();

http://help.arcgis.com/en/webapi/javascript/arcgis/jsapi/map.html#getscale

and to set the scale try something like this:

              <input id="scale"                onkeypress="keyPress(event)"               onChange="map.setExtent(esri.geometry.getExtentForScale(map, this.value.replace('.', '')));"/>  function keyPress(e) {     if (e.keyCode == 13) {         dojo.byId("scale").blur();     } }

All comments

TuridBrox

add this and you have all in the same textbox:

Thanks for the code snippet. I added this to the layout.js-file. But how do I get it to display on the map? I assume I must make some changes either in the .html-file, or one of the CSS-files?

Turid

RobertBorchert

I am looking for a way to return scale in an ArcGIS session.

Possibly by putting it in a dynamic text box in layout.

Or better yet to write it into a Definition query.

The query would be something like only show this feature if the scale is less than (or greater then) the attribute (the attribute would have desired scale)

Essentially.

I have an attribute I call VisibleScale. I populate it with scale values. 1000, 2000, 15000 etc.

The definition query would be such that if the current scale value is greater then the VisibleScale Attribute then the individual feature would not be visible.

mmh sorry I don't understant your problem... can you explain it better please?

DavideLimosani

I pasted that into a text box and it shows what i pasted as the text

mmh sorry I don't understant your problem... can you explain it better please?

RobertBorchert

I pasted that into a text box and it shows what i pasted as the text

add this and you have all in the same textbox:

DavideLimosani

add this and you have all in the same textbox:

function showScale() {

     dojo.byId("scale").value = dojo.number.format(map.getScale(), { pattern:"##,##0"});
}

    dojo.connect(map, "onZoomEnd", showScale);

RobertBorchert

do you know of any way to apply the getScale() to a label either for a feature or a Dynamic Text field in a layout

TuridBrox

Thanks a lot! 🙂

DavideLimosani

Is there a way to let the viewer see scale text (i. e. "1:1000") instead of just a scale bar in ArcGIS Online maps? We are using the Basic Viewer template with some minor modifications. We would want to use metres as the unit, if possible.

Even better: is there a way to let users choose a scale by selecting from a drop-down menu, or typing the numbers?

Any hints are appreciated 🙂

Thanks,
Turid

Hi,

use map.getScale();

http://help.arcgis.com/en/webapi/javascript/arcgis/jsapi/map.html#getscale

and to set the scale try something like this:

              <input id="scale"                onkeypress="keyPress(event)"               onChange="map.setExtent(esri.geometry.getExtentForScale(map, this.value.replace('.', '')));"/>  function keyPress(e) {     if (e.keyCode == 13) {         dojo.byId("scale").blur();     } }

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