Defining the scale
There are two ways to define the scale of a page : manual and automatic. The automatic scaling is faster, but for more precise results, we recommend using the manual scale.
Manual Scale
Find the longest known dimension on your plan
Click on the scale button on the top left corner of your toolbar
Click on the “Manual” button in the new window
Choose the type of measure between “Imperial” and “Metric” to use for your scale
Choose if you want to set the scale with one measure “Same scale for horizontal and vertical axes” or with a vertical and an horizontal measure “Different scale for horizontal and vertical axes”, the second choice offers results with better precision
Enter the measures in the appropriate boxes
Click on “Save”
Click on the first end point of your measure (start with the horizontal measure first if you chose the “Different scale for horizontal and vertival axes” option)
Click on the 2e point of the measure (if you chose “Different scale for horizontal and vertical axes”, at this point you will have to repeat steps 8 and 9 to enter the second measure)
Click on “Stop” or press the “Escape” button on your keyboard to stop the setting of the scale
For the greatest possible accuracy in case of skewed plans, we provide the option to enter a different dimension for the horizontal and vertical axes. This means that you can find two known dimensions on your plan : a vertical line (for the vertical axis) and a horizontal line (for the horizontal axis).
Click on the scale button, then on "Manual". Check the box "Different scale for the horizontal and vertical axes", then enter your two dimensions' lengths in the appropriate fields.
Hit "Save". One axis at a time, click on the two end points to draw your dimension. It does not matter whether you start vertical or horizontal.
Zoom-in your plan the more you can (using your mouse’s wheel) to get a more precise result
Automatic Scale
Click on the “Scale” button in the toolbar
Click on the “Auto” button
After clicking on the “Auto” button the menu will changeSelect the scale of your plan in the drop-down menu
Click on «Save»
Validating your scale
Choose one known measure on your plan and click on the Measure tool in the toolbar
Click on the first end of the known measure on the plan
Click on the second end of the know measure
Make sure the measure that appears is the same (or at least very close to) as the one you know (at the precision necessary)
Click on the “Stop” button to stop using the measure tool
If the measures are not the same, please try to set the scale the manual way.