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# pcb-rnd - the [cycdrag] patches, negative box select

When a selection is made using drag&drop (box selection), depending on the direction the rule for object selection differ:

- drag from top-left towards bottom-right (positive sized box): select objects that are fully contained in the box (original behaviour)
- drag in any other direction (e.g. bottom-left to top-right, or bottom-right to top-left; negative sized box): select objects that are even partially within the box or merely touch the edge of the box

The feature can be disabled using the editor/selection/disable_negative conf setting.

It's possible to limit the feature so that only horizontal-negative is considered negative size (i.e. only right-to-left dragging), using the editor/selection/symmetric_negative conf setting.

## save/load and compatibility

Not affected.

## plans

Work more on some rough corners of the negative direction: e.g. pads are handled as 0 width lines so the selection has to hit the center.