Reference area

Once you confirmed the editing process of the image, the app automatically switches to the sizing and calibration mode. A grid pattern will appear over the image. By moving the corner points, you can position the grid. The goal is that the reference area within the image and the grid align as good as possible. The edges of the building are a good starting point for positioning the grid.

For an accurate setup, zoom in after the first initial positioning. The arrows help to be more accurate. The lines and measurement points within the zoomed-in area fade out with clicking onto the picture.

If you press confirm, you can transfer the reference area.