Daily Archives: July 24, 2023

2 posts

Add Map Image

How to calibrate GPS track on a map

Once track has been imported to Control app the GPS route is calibrated to match the map picture. To add map image, open the imported course and tap the menu icon. Then select Add map image… Select the way you want to import the orienteering map: Typically best result you get with either importing map as PDF-file (if you have a copy) or by scanning with camera. Also you should remove any possible plastic cover from your map before scanning the map. Once map image has been added Control app will show the calibration screen automatically. If needed, you enter to the calibration screen again by selecting from the menu Re-calibrate track. Move the track on the screen so that one point on the map matches the map. This can be the start, finish or any location easily identifiable part.While doing this you will only have one marker point. You can change the location of the marker point by tapping any location on the route. Add new calibration points. Tap + Add point to add a new calibration point. Use it to calibrate second point of track to the map. This will also allow you to rotate the track on the screen. You can add additional calibration points as many as you need to calibrate the track to the map. Remove and Reset If you made a mistake, you can select a calibration point and Remove it. Or if you want to start over, select Reset. There is also a video Tutorial to help you to learn how calibration works. Hints Track in the calibration view displays control points for easier alignment. While running the course, mark the control points with your device. Control app can import lap markers as control point locations. Track is easier to calibrate when you add points and move a control point marker to the control point on the map. You can also add control points afterwards with the Edit points -feature. Map images that are not distorted (taken in angle) are easier to calibrate. Try to have the map as wrinkle-free as possible when taking the shot!

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Placing control points on map

After marking the control points on the route, Control app can display direct distance between each control point and the actual distance run. Control app also displays the deviation as percentage. Control app will display split times for each control point as well as pace (min/km) for each control point. Control can automatically import lap markers as control points, so by marking a lap on your GPS watch at each control will store the control point location and it will be displayed in Control app automatically. You can enable this from Settings. You can also mark control points during your run in Apple Watch app as well as with the iPhone app. Control points can be added also to the route after the map calibration. Add or change control points, select Edit points from the menu. This will open the control point editing screen. To add a new control point tap + (plus) and then select the location where you want to add the control point by tapping it. You can alternatively also move control point on the route by swiping left and right on the highlighted (dark gray) control point row. You can also move course start and end positions similarly as any other control point. Select the point you want to move from the list of control points and move it to the right location by either tapping that location or by swiping left or right on the control point row. If you have added extra controls, you can delete a control point. In iOS/Mac tap – (minus) indicator on the control point row. This is a trash can button in Android. Save the control points by tapping Save, this also closes the control points editing screen. Tapping Reset will reset to the control points positions from importing the track (lap markers). Any modifications done later will be lost. Cancel will close the dialogue without saving changes.