Hello,
I am a model airplane builder.
I draw the plans for my models myself and sometimes i use an existing plan that i trace over to become a drawing that can be scaled etc.
But sometimes the lines i am drawing seem to dissapear behind the bitmap i use as background.
I have two questions about this: Is it possible to make layers more or less transparant.
Is it possible to give some sort of priority to the active layer so that it always stays visible.
No, this is not possible.
Don’t think of layers as stacked drawing surfaces.
Layers are intended to control the attributes that live on it: Tutorial: Working with Layers
The drawing order is entity based and there is no drawing order based on layers.
For your application:
Insert the image (IM) on a dedicated layer, for example called ‘Example plan’.
Select the image and set it in the background with Send to Back (MB).
It can be interesting to set the Fade property of your image to make it somewhat transparent (e.g. 75%): See Property Editor when selected.
Lock the dedicated layer to avoid highlighting the image when the cursor is near or on it.
Draw over your image on another layer with a distinct Color and Lineweight.
Another solution might be:
Since QCAD v3.29.4 there is a preference to control highlighting (and raise) bitmaps within cursor range.
But locking the layer with the already immutable bitmap has its advantages.
