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Identify, measure, draw

· 4 min read
Massimo Di Stefano
FastGIS author

The desktop planner's map tools now work the way a desktop GIS does. Identify tells you what every layer has at a point, Measure keeps each measurement in a widget of its own, and the vector editor has every action on its toolbar, each with a key. Only one of them is on at a time.

What is here?​

The Map tools toolbar has an Identify button. Switch it on and click the map, and the Identify widget lists what is at that point. It starts with the height and the slope of the ground. If the point is on your planned route, it adds the kilometre, the grade, the surface, the posted limit and the time it takes to get there, and the profile's marker moves to the same place. Then it lists each of the app's layers that has something there: a rider report, a dirt passage, a result from a search, a track, one of your drawings, an advisory zone. Each feature shows its attributes and an Open button, which does what a click on that feature would. Last come the basemap's own features, such as the road and its surface, the land cover, a protected area, a barrier or a contour line.

Copy and Share give the whole answer as text, starting with the coordinates. The I key does the same at the cross in the middle of the map, without switching the tool on.

Measure, with every segment​

M switches Measure on and brings its widget forward. Click to add points. The line follows the pointer from the last point, and a small readout beside the pointer gives the length from that point and the total so far. A double-click finishes a path. A click on the first point closes an area, and before you click, the readout already shows the perimeter and the area you would get.

The widget lists every measurement with each segment and the running total. A closed one also shows its perimeter and its area. Each has Copy, Share, zoom to and delete, and Keep as a drawing hands it to the vector editor. Measurements stay on the map until you delete them, and a project keeps them.

Every action of the editor, with a key​

The vector editor's Editing toolbar now holds everything its widget offers for a feature. 1, 2 and 3 add a point, draw a line and draw an area, the same digits as the OpenStreetMap editor iD. X splits a line, Z zooms to the selected feature, T makes a line a track of the plan, L saves the feature to the library (or back to the record or track it came from), Q drops your changes to it, and E saves all your drawings as a GeoJSON file under a name you choose. Every button's tooltip gives its name, its key and a line about it. A greyed button's tooltip says why it is greyed. While a line or an area is being drawn, it follows the pointer from the last vertex. New features get their names ("Line 3", "Area 2") in your language.

One tool at a time​

Switching on identify, measure, draw or report switches off the one that was on, and its button un-presses. The same goes for a tool that asks you to pick a place on the map, such as a stop or a loop's start. Before this change, the vector editor could quietly swallow the click a stop pick was waiting for.

All of it is in the desktop guide.