Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
en:help:v2:maps:file-based-calibrate [2019/10/17 14:47] – alpinequest | en:help:v2:maps:file-based-calibrate [2023/09/15 20:07] – external edit 127.0.0.1 | ||
---|---|---|---|
Line 3: | Line 3: | ||
====== How to calibrate an image to use it as a map? ====== | ====== How to calibrate an image to use it as a map? ====== | ||
\\ | \\ | ||
- | The application allows you to use regular images as maps. In order to correctly locate items (points, tracks, etc.) on this map, the application must know what is the exact area covered, this is done by the calibration process: after displaying the image, you must match 4 points with another existing and correct map. | + | The application allows you to use regular images as maps. In order to correctly locate items on this map (points, tracks, etc.), the application must know what is the exact area covered, this is done by the calibration process: after displaying the image, you must match 4 points with another existing and correct map. This process is done only one time, then the image is converted as a regular map file. |
{{: | {{: | ||
Line 19: | Line 19: | ||
When you've selected the correct folder, tap the image {{: | When you've selected the correct folder, tap the image {{: | ||
- | {{ : | + | By default, the 4 calibration points are placed on the four corners. |
- | The application requires you to correctly match four (4) calibration points with the base map. By default, those points are placed on the four corners. | + | {{ : |
For each calibration point: | For each calibration point: | ||
- | * Tap the button of this calibration point {{: | + | * Tap the button of this calibration point {{: |
- | * Tap and old the arrows icon on the map {{: | + | * Tap and hold the arrows icon on the map {{: |
* Tap the button of this calibration point {{: | * Tap the button of this calibration point {{: | ||
- | * Reduce the opacity of the image to calibrate using the opacity slider {{: | + | * Reduce the opacity of the image to calibrate using the opacity slider {{: |
Repeat those steps for the three other calibration points. | Repeat those steps for the three other calibration points. |