How to create an overlay for visualizing your own geographical vector information: Difference between revisions
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'''3: Add an | '''3: Add an area overlay visualizing the areas''' | ||
{{editor location|overlays|dropdown=Add areas}} | {{editor location|overlays|dropdown=Add areas}} | ||
{{howto|title=add and configure an Area Overlay | {{howto|title=add and configure an Area Overlay | ||
| In the "Overlays" dropdown, select "Add | | In the "Overlays" dropdown, select "Add area". A new overlay is now added to the project and selected. | ||
| At the bottom of the right panel, select "Add Areas with attribute". The "Add areas with attribute" window will open. | | At the bottom of the right panel, select "Add Areas with attribute". The "Add areas with attribute" window will open. | ||
| Select the attribute of your Areas, and select "OK". | | Select the attribute of your Areas, and select "OK". | ||
| All Areas you want to visualize are now shown by this overlay. | | All Areas you want to visualize are now shown by this overlay. | ||
}} | }} |
Revision as of 09:06, 28 September 2023
You can visualize vector data as an overlay in your project using an Area Overlay. To do so, upload your data as Area with an Attribute indicating what the polygon represents. Each area has an attribute the value of which identifies which of the areas should be shown in the same color. Then set the colors for those areas to recognizable colors, based on what the value of their attribute is. Finally, add those areas to an overlay to visualize them.
1: Upload your data as areas
How to upload your data as areas:
- Prepare your data as a GeoJSON file. Make sure all areas have an identically named attribute, with a value which is the same for all areas which should have the same color.
- Open the Geo Import wizard. Follow the steps to load in your file as Areas.
2: Set the color of your uploaded areas
How to set the color of multiple areas at once:
- Open the "Edit multiple attributes" window for Areas.
- In the top half of the window, activate the "Attribute" filter and the "Value filter" by checking the checkboxes.
- For the attribute filter, select the attribute which represents the data you wish to base the area's color on.
- For the "Attribute to be changed", select "COLOR"
- For "New value for attribute", check the "Color" option.
- Use the now available color selector to select the desired color.
- Select "Set value" to set the colors.
- For eachpossible value of the attribute, repeat setting the "With value" and the new color, and then selecting "Set Value"
3: Add an area overlay visualizing the areas
How to add and configure an Area Overlay:
- In the "Overlays" dropdown, select "Add area". A new overlay is now added to the project and selected.
- At the bottom of the right panel, select "Add Areas with attribute". The "Add areas with attribute" window will open.
- Select the attribute of your Areas, and select "OK".
- All Areas you want to visualize are now shown by this overlay.