preparation for 2.0.6, any blocker?

Quenzo wrote

Hi. In advance, some of these issues can be my mistakes, in this case I 'm sorry.

Modify--> Trim / Extend two option

1 The cut between two figures curves (circle, ellipse, or arc) is made according to where on each figure is selected. It can cut two, cut one (especially if it's between the ellipse and the circle cutting the ellipse like with the normal cutting option), and may also extend a figure (especially arcs) when you expected to be cut.
It seems that the application sometimes isn't sure lengthen or trim the curves, and if it has to cut one or two.
However, with the straight lines have no problem.

2 When you try to cut a circle or ellipse intersecting a closed polyline or a freehand line if you select these first, the application breaks and closes.

For your item 3:  we have serious trouble with our equation solver. We will see whether we can improve it.

Have a look at this dxf file, with the red and green circles has similar meaning, and the intersections of those two circles are the two points to pass, and the white circles are the base circles.

a, start tangential circle 1_2p;
b, choose any white circle to draw tangential circles of it;
c, choose the two intersection points between the red and green circles.

ideally, the algorithm should be able to generate both red and green.

tan1_2p.dxf

Draw--> Circle--> tangential 2points option

This option does not work as I expected. I wanted to draw a circle (green) tangential to the small white circle and then going through two points, the left upper and lower corners on the square, but the application draws the red circle. Indeed the two circles meet the two conditions (being tangential and passing through two points), but the application always draws the red circle. I don't know if this is a bug or can be configured differently to make the green circle.

Best regards

Manel

Quenzo wrote

Hi Dxli

For item 1
steps:
a I draw a circle
b Draw an ellipse intersecting the circle
c Main menu -> Move / Copy
d I make four copies Figs. A, B, C, D and E)
d sign with arrows the exact points where I will select each figure.
e Main menu -> Modify -> Trim / Extend two

In the fig A
First entity to cut: ellipse
Second entity to cut: circle

In the fig B
First entity to cut: ellipse
Second entity to cut: circle

In the fig C
First entity to cut: circle
Second entity to cut: ellipse

In the fig D
First entity to cut: circle
Second entity to cut: ellipse

In the fig E
First entity to cut: ellipse
Second entity to cut: circle

I don't understand why the final results are differents
Trim_two.dxf



For item 2
I did the tests with the option Main Menu -> Modify -> Trim / Extend two, I didn't with the option Main Menu -> Modify -> Divide

steps:
a I draw a circle
b Draw a freehand line intersecting the circle
c Main menu -> Modify -> Trim / Extend two
d First entity to cut: freehand line
e Second entity to cut: circle
f The application closes
(Repeated several times)



For circle tangential and two points
a I draw a square
b Enable snap to middle only
c Main Menu -> circle
d Drawing a circle of radius 10 at the midpoint of the right edge on the square
e Enable snap on endpoints
f Main Menu -> circle -> circle tangential 2 points
g When it asks "Specify the line/arc/circle", I select the circle above
h When it asks "Specify the first point on the circle tangent", I select the lower left corner on the square
i When it asks "Specify the second point on the circle tangent", I select the upper left corner on the square

Result:
Tangential_2points.dxf

Best regards

Manel

Quenzo wrote

Thank you very much for your effort, and for all people who dedicate their time to this project. Whenever I can, I will test the application as a user (I'm not a code programmer, but I'm an experienced user of CAD and CAM) and I'm going to communicate any error I seeing, is the only way I can help.

Best regards
Manel

Quenzo wrote

Hello Dongxu

Perfect!!
Seeing it in a practical way, you simply found the best solution. Thanks.

Now, another issue: When I draw a polyline arc, the tool options bar have two checkboxes for which the arc will be drawn in the clockwise or the counterclockwise direction. Why has it no effect?

Regards
Manel