Search found 27 matches

by yetanotheruser
Wed Oct 03, 2018 9:40 am
Forum: QCAD 'How Do I' Questions
Topic: Add point after given distance on polyline or spline
Replies: 1
Views: 2239

Add point after given distance on polyline or spline

Imagine a spline (or polyline, as we can convert from spline to polyline) with a length of 10 cm. I want to add a point after a given distance, e.g. 3 cm. The point shall not change the shape of the spline, but it shall be a point that's already on the spline but until now not selectable by me as an...
by yetanotheruser
Thu May 24, 2018 9:31 pm
Forum: QCAD 'How Do I' Questions
Topic: Rotate until intersection with circle / given distance to point
Replies: 7
Views: 4600

Re: Rotate until intersection with circle / given distance to point

Indeed center of rotation is the lower end point of the blue curve. Using a second circle works great: https://i.imgur.com/NbXCxAz.png with hairlines: https://i.imgur.com/FVBoTTM.png but now comes the interesting thing: when zooming in and zooming in and ... it ends up like this: https://i.imgur.com...
by yetanotheruser
Thu May 24, 2018 7:53 pm
Forum: QCAD 'How Do I' Questions
Topic: Rotate until intersection with circle / given distance to point
Replies: 7
Views: 4600

Rotate until intersection with circle / given distance to point

I have a complex issue that's best explained by this image: https://i.imgur.com/C20hogM.png 1) I want to rotate the blue curve counter-clockwise until it's upper end hits the circle. Unfortunately on rotation there only seems to be tangential snapping, which leads to this: https://i.imgur.com/eVvjCY...
by yetanotheruser
Thu May 24, 2018 7:40 pm
Forum: QCAD 'How Do I' Questions
Topic: Global maxima / max. distance between two entities
Replies: 6
Views: 4536

Re: Global maxima / max. distance between two entities

Thanks, I was wondering if there is a special undo function just for rotation (doing an inverse rotation), not the gobal undo function. But I understand there is none.
by yetanotheruser
Thu May 24, 2018 4:25 pm
Forum: QCAD 'How Do I' Questions
Topic: Global maxima / max. distance between two entities
Replies: 6
Views: 4536

Re: Global maxima / max. distance between two entities

Thanks, I actually used reference points. Just wondering if - for rotating back - I again have to select the necessary reference points or if there is some kind of functionality/shorthand like "rotate back", which automatically undos the last rotation?
by yetanotheruser
Thu May 24, 2018 3:51 pm
Forum: QCAD 'How Do I' Questions
Topic: Global maxima / max. distance between two entities
Replies: 6
Views: 4536

Re: Global maxima / max. distance between two entities

Thanks andrew, that works for finding the point in the rotated position (actually one doesn't even need the helping line :D ). I then added a point at the intersection between curve and bounding box and manually rotated the curve (including the new point) back to their original position. Is this the...
by yetanotheruser
Thu May 24, 2018 2:57 pm
Forum: QCAD 'How Do I' Questions
Topic: Global maxima / max. distance between two entities
Replies: 6
Views: 4536

Global maxima / max. distance between two entities

I have an curved polyline segment for which I need to find the global maxima. Here's an example image: https://i.imgur.com/etU2DYJ.png - The red entity is the curved polyline segment - The yellow line goes from the start point of the red entity to the end point of the red entity I now need to find t...
by yetanotheruser
Fri Mar 09, 2018 8:52 pm
Forum: QCAD 'How Do I' Questions
Topic: Select inserted image?
Replies: 1
Views: 2097

Select inserted image?

Hi all,

I inserted an image using Draw - Insert Bitmap. Now I want to select it in order to resize it - but how can I do this? :?:
Just clicking on it does not work ):

Thanks!

Edit: OK, think I found it - had to make a rectangle selection around it. Is this the only way?
by yetanotheruser
Tue Jan 02, 2018 9:18 pm
Forum: QCAD 'How Do I' Questions
Topic: [solved] Apply different offset distances on different parts of a drawing
Replies: 5
Views: 4469

Re: Offsetting adjacent drawings and combining different offset distances

Sounds like an idea, but is there an easy way to split my large polyline (the red drawing is just one large polyline) into smaller ones, say 4 of them (upper side, right side, lower side, left side). Exploding the polyline gives too many parts. Yes - there is an easy way. Check the "Divide" and the...
by yetanotheruser
Tue Jan 02, 2018 3:13 pm
Forum: QCAD 'How Do I' Questions
Topic: [solved] Apply different offset distances on different parts of a drawing
Replies: 5
Views: 4469

Re: Offsetting adjacent drawings and combining different offset distances

Please post separate questions into separate threads, thanks. I moved my first question to a new topic: https://qcad.org/rsforum/viewtopic.php?f=32&t=5333 1) You will likely have to do some trimming after offsetting. Thanks, but is there really no better way? I formulated my question different in h...
by yetanotheruser
Tue Jan 02, 2018 2:53 pm
Forum: QCAD 'How Do I' Questions
Topic: Offsetting only shape of drawing
Replies: 1
Views: 2438

Offsetting only shape of drawing

Given this drawing: https://i.imgur.com/XhTn8Nb.png I need to outset the outer shape of this drawing, here's a sketch what I want to have, where the yellow polygon shall be the offset outer shape. The offset distance shall be a constant distance of 10 mm, the sketch is far from perfect. https://i.im...
by yetanotheruser
Tue Jan 02, 2018 2:23 pm
Forum: QCAD 'How Do I' Questions
Topic: [solved] Offset path is incomplete
Replies: 4
Views: 3960

Re: Offset path is incomplete

Gaps are usually caused by tolerance issues. These tend to occur if a polyline contains arc segments with very large radii as is here the case. A potential solution (other than turning off clipping) might be to straighten all arc segments into line segments using Draw > Polyline > Arc to Line Segme...
by yetanotheruser
Tue Jan 02, 2018 8:32 am
Forum: QCAD 'How Do I' Questions
Topic: Chosen way of Delete Segments between Two Nodes
Replies: 2
Views: 2866

Re: Chosen way of Delete Segments between Two Nodes

To delete single nods use the tool "Delete Nodes". But what you are up to sounds to me like a"Sisyphus task". What is your goal - a straight line between upper right corner of the shape and point 2? Actually I need different offset distances on the different sides of the drawing. A visual example c...
by yetanotheruser
Mon Jan 01, 2018 11:34 pm
Forum: QCAD 'How Do I' Questions
Topic: [solved] Apply different offset distances on different parts of a drawing
Replies: 5
Views: 4469

[solved] Apply different offset distances on different parts of a drawing

Given the following drawing, I need different offset distances on the different sides of the drawing. The first screenshot shows the original drawing without offsets, the second screenshot shows a sketch how the offset distances shall look like on each side of the drawing. https://i.imgur.com/weVhfv...

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