QCAD

"select not possible" does not mean "low severity" to me. Attached you find a screen shot in default view, where every line is selectable as expected. With little zooming (second file) NONE of the displayed lines is selectable by a single click and therefore none of the tools with two lines (e.g. trim) is working. The marked tiny line in the first view is not selectable precisely without zooming.

Information for potential workaround: Problem is caused by non-zero Z level (i.e. drawing is not 2D).

Thank you for the hint.

How can I check or reset one or all Z-levels? (sorry, couldn't find an answer with google or in FAQ or qcad-how-do-I.)

The drawing is created by someone else with ACad (file starts with AC1018 and shows the string "AutoCAD LT 2004\R9" somewhere inside), so I don't know the Z-levels.

You would have to use a 3D CAD application for that or (if you are comfortable working with a plain text editor) modify a QCAD script as described below to allow Z coordinate editing in QCAD.

• Open file scripts/Widgets/PropertyEditor/PropertyEditor.js with your favorite plain text editor.

• Change the section (original code):

// don't display any Z values:
var controls;
if (title==="Z") {
    controls = undefined;
}
else {
    controls = this.initControls(propertyTypeId, onlyChanges);
}

• Into (new code):

// don't display any Z values:
var controls;
//if (title==="Z") {
//    controls = undefined;
//}
//else {
    controls = this.initControls(propertyTypeId, onlyChanges);
//}

• Restart QCAD
• Select all
• At top of property editor, choose "Selection: Line"
• Change all Z coordinates to 0

Thank you very much, I will try this as soon as possible and post the result.

Confirmed, after changing to Z=0 all lines are selectable even if view is zoomed.

Is there a way to set all Z-coordinates to 0? If I select all?
Choosing "Selection: Line" does not show Z-coordinates (General and in Geometry: length and angle, nothing more).
Choosing "Selection: Block Reference" gives Z-coordinates in position and scale.

The property editor rises another question: why does the selection always change back to "All"?

Thank you very much.

maybe this would be a feature request: reset all Z-coordinates on load to 0?

the received file or the importing of it seems to have other issues, see attached screen shot with "Parse Error"