![]() Just because I feel like sharing, here is a related theorem: One look could be lines coming from each corner that terminate on the snap point. (IIRC, there are also menu choices and hotkeys)įrom: ravas LibreCAD/LibreCAD Arthur Torrey Wed, 23:28:10 -0000 (UTC) Whichever mode you are in, the Icon shows a picture of the other one. To switch between them, there is a clickable icon on one of the toolbars that toggles between the style. In the schematic drawing portion of the program "eeschema" they have a choice between an 'X' crosshair and dotted horizontal and vertical lines across the screen. Not completely sure it would work as nicely in practice as it sounds like it would in theory, but seems worth looking at.Īs one option on how to make it easy to change the crosshair shape - I use KiCAD a good bit for doing schematics and wiring diagrams. Even if it did overlap, that could almost always be fixed just by panning a bit in any direction. It would have minimal odds of significantly overlapping with either existing drawing features or what you are trying to add. (I'm assuming by corner, you mean screen corners, it might be a problem figuring out what other points to use, and arguably less useful) I could see that being a very slick approach. ![]() Reply to this email directly or view it on GitHub: What about a hotkey to toggle the appearance of the crosshair?Ĭhanging the color would be the most simplistic Subject: Re: Make crosshair change color to contrast w/ other drawing features? ( #550)Īlthough, I'm wondering if the added amount of analysis would be worth the convenience. ![]() įrom: ravas LibreCAD/LibreCAD Arthur Torrey Wed, 23:00:11 -0000 (UTC) I hadn't thought about changing the crosshair orientation to diagonals, but that could be a neat approach - except of course when trying to add a 45* diagonal. As a result it's slower but I tend to be much more of a mouse / menu based user. I'm not a big user of hotkeys, I use enough different programs that I'd just as soon not remember what key combo does what in which program. Relative coordinates - using this method, coordinate points are entered in relation to the previous point entered (not the origin), so for example - if your first point is 20,45, to then enter your next point 'relative' to this - you would use the symbol - e.g would then enter the second point 50 units horizontally along the x axis and 50 units vertically along the Y axis to give this second point relative to your last point (20,45).See image below.I don't know what the best approach would be, though obviously making it 'automagical' would be nice. To do this in LibreCAD just enter in the exact point e.g. You can 'manually', move the mouse cursor around and visually pick a coordinate point, but obviously this method is less accurate but may be acceptable for some 'rough' sketch or freehand work!Ībsolute coordinates - using this method,coordinate points are entered in direct relation to the Origin 0,0. To input coordinate value points in LibreCAD you can 'type' your values in the command line or inside a 'text input box' (presented by tool options requiring distance,angle etc.).This method is 100% accurate. In LibrecAD lines,points, Arcs, Polylines, Circles and many more entities can be drawn and placed in a drawing using either Absolute or Relative coordinate input. Coordinates can also be shown as 'Positive' (+) or 'Negative'(-) values. In libreCAD`s 2D coordinate system all X units are measured horizontally and all Y units are measured vertically. In LibreCAD there is also the option to set the Relative Zero Point (small red circle).This Relative zero point can be temporarily set to a new location in a drawing so that all subsequent X and Y coordinates of entities drawn or blocks placed for example will be relative to this newly set Relative Zero Point. The absolute origin or Zero point in your drawing is where the X and Y axes cross each other (represented by a Red cross), every entity you draw is located in relation to this origin. Everything that you draw in LibreCAD will be exact and precise and will be placed there accurately based on the X,Y coordinate system. In order to get the best out of LibreCAD it is wise to have a good understanding of the coordinate system and how coordinates work. ![]()
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