Illustrator :: Methods For Finding Circumcenter Of Any Triangle Or Creating Its Circumcircle
May 22, 2012
I'm interested in what generalized method you would use to create a circumcircle for any type of triangle; the first thing that comes to mind is: how would you find the circumcenter?
Right now I am constructing two perpendicular bisectors using this method:
• Select the triangle.
• Menu) Object → Path → Add Anchor Points
• Lock that layer and create a new one.
• Draw a line from one of the added anchor points to a corner anchor point.
• With the rotate tool: Alt+click on the added anchor point and rotate the line 90 degrees.
• Then repeat all of that to make another side's perpendicular bisector.
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May 25, 2012
I'm wondering how you would construct the altitudes of any triangle,so that you may find its orthocenter.I'm currently constructing three circles to find an altitude, based on this.
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Feb 12, 2008
[URL] I am trying to find the geometric center of a triangle, star and a pentagon so I can align Group Spokes and cut the shapes. What is Illustrators trick?
I do not want the center of the bounding box. I need the center of the shape. I once had this thread bookmarked for later reference but the link no longer exist.
Centers of triangles. [URL] Ai CS3
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Apr 10, 2013
So when I create a triangle by using the star shape tool and only giving it three points. When I have my triangle, I duplicate it and make it smaller. I center them both up on the canvas, but they don't look centered. As you can see in the picture provided, the bottom has more of a width that the others. I've tried using the alignment tool and the smart guides. I do resize the triangle using shift so it doesn't mess up the shape too.
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May 31, 2012
is there a way to extend existing classes? I am trying to add methods to the symbolItems class, but it doesn't seem to work. says it is not defined:
symbolItems.prototype.isIn = function(parentItem, runThis) {
//do something
}
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May 29, 2012
The problem I have is I cannot change the brush to pure black; it's only dark gray and normal methods of changing the color aren't working.I went to Brushes, selected one of the Artistic_Ink brushes. (And drew a design)
I tried double clicking on it in the Brushes palette and in the "Art Brush Options" the colorization was already set to Tints. I tried all the other options but the color of the artistic brush is still dark gray; not black.
What else can I do to change the brush to pure black?
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Aug 6, 2012
I would like to create an eps triangle with curves (instead of points) but don't know how. I've Illustrator version 8. I need to open in Illustrator version 8
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Dec 12, 2013
How do I connect a circle and a square ? How do I cut a triangle into an object?
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Feb 26, 2014
How do I draw a triangle with smooth rounded corners and straight sides?
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Dec 12, 2013
I am trying to create a pattern that I have created in previous itterations of Illustrator. In CC when I create a triangle (either via Star, Poly, or Pen tool) and then try to rotate it via Transform Each > Transform again, the rotation point moves according to what the bounding box would be if I reset it, rather than staying in one (original) spot relative to the actual bounding box and triangle. I cannot find any settings that would be affecting the rotate point in this way. I am pretty confident that I am using the same procedure now that I did in older versions of Illustrator. Perhaps I am using the wrong procedure.
Naturally, if you are rotating something around its center you should expect that it would end up create a circular pattern. It is more of a square with concave sides. The red is a perfect circle that I grouped to the triangle to demonstrate the rotate points movement. It is located in the exact center according to the align tools.
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Mar 6, 2013
I want to create a right-angled triangle (just the three sides, no fill) where each side is a different color (say red, blue, and green). For generality, let's assume it's a scalene (rather than isosceles) right triangle. I want the weight of each line to be about 3pt. (But I guess that's not a crucial number. Let's say I'd like the sides to be 20 or 30 pts thick, for the thrill of it.) I know how to draw the three lines of specified width, make them different colors, and arrange them into a triangle. My problem is how to make the vertices (corners) look miter-joined rather than have them overlapping each other, which obviously looks terrible and like something an infant drew in Microsoft Paint. ;-) If I join the 3 paths into a single shape, they all become the same color, so I'm thinking I have to keep it as 3 separate lines (paths). The only solution I can think of is: Instead of drawing three lines of 3pt weight, draw three extremely thin rectangle shapes (about 3pt wide), one of each color, and rotate/position them so that they form the sides of a right-angled triangle. Then go in and do some visual surgery at the vertices to make the vertices look miter-joined.
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Dec 1, 2013
I have assigned ai::UnicodeString names to some art in my AI document.
This I have acheived using sAIUIDUtils->SetArtNameOrUID()
For retreiving the art from document, I want to use the ai::UniCodeString names of the art.
error = sAIUIDPool->GetPool("anyName", &pool); // The SDK reference says the 1st parameters is ignored, but error = 1346458189 after this steperror = sAIUIDPool->NewUIDREF(pool, myUnicodeName, &uidRef);error = sAIUIDUtils->GetReferencedArt(uidRef, &foundArt);
if(foundArt == NULL){ matchingArtFound = false;}
What is wrong with the above code to acheive : "Get the art, knowing its name" ? Is there any better way to do so ?
This unicode name is the one which we see in the attribute name "id" in the SVG format of the AI document.
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Nov 13, 2013
I am struggling with the "sAIArtSet->MatchingArtSet()" in restricting it to find the artset from the selected artboard only.
One way is to iterate through the found art set and compare art's artboard index with the index of the selected artboard. Wanted to know if there is some internal SDK suite which does this iteration in a more optimized way ?
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Oct 30, 2013
I have an illustrator file made by someone else. They made swatches for different background colors. I want to get the Hex values for these colors so I can replicate them in a web page. I just can't seem to do it. I'm getting
The layout of the file is essentially a bunch of little boxes (it's a periodic table). I click on the swatch panel and it tells me something like "unamed Swatch 3" but I can't seem to get how to find out exactly what values those colors contain.
I'm using Illustrator CC and am new to Illustrator altogether.
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May 28, 2013
I have tried the Links dropdown and the Document info dropdown but no files appear at all.
I have three linked/embedded files.
Need to finding out the names of the files..
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Jan 10, 2014
So here's what I wrote to try and find and delete all pathItems within a document that lack a fill and lack a stroke.
var doc = app.activeDocument;
for (i=0; doc.pathItems.length>i;i++) {
alert(doc.pathItems[i].name + " " + doc.pathItems[i].fillColor.name)
[Code]....
But alas, neither seems to do the trick, the first one makes sense why it wouldnt work since it says that the color is "undefined" but it isnt a string called "undefined." So I'm not sure how to go about this at all now.
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Jul 19, 2012
Is there a way when finding and replacing a text string to style the block of copy. My problem is that I have some color codes given by the customer that now need to be converted to our internal color matches on our production drawings.
The original string of text looks like this:
Holder: P1 (Metallic Silver)
What I’m getting when I go to replace this string is:
Holder: Natural Satin
What I want is:
Holder: Natural Satin
I do not want the replaced text to be italicized. I'm thinking since the original string ends with an italic style that the replacement string is also italicized. There are about 50 pages of drawings with about 10 colors on the job and some pages have them entered in more than one place. So that's a minimum of 500 entries and defititely more considereing the multiple places these are called out. I'd really rather not have to copy and paste all of these by hand. I'm use to FreeHand, which would respect the font styling of pasted text in the find and replace diaglog.
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Jul 23, 2002
I normally use Unsharp Mask, Amount: 100 / Radius: .5 / Threshold: 0 -- followed by Fade with Luminosity Mode. Recently I've started experimenting with the Hi Pass Filter. There seems to be many different tutorials on sharpening, each one's method slightly different. I'd be interested in other user's favorite methods and why.
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Jan 26, 2012
Is there something to look at to learn all the properties for CorelDraw object more than just color and shape and the like.
Is there a trick to expose all the functions of the obejct (like a curve or oval) and it's properties?
I would like to measure and identify all points on a combined curve and I was hoping for a function to identify if a curve is at or near an X Y location.
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Nov 11, 2012
Im trying to teach myself to draw pipe spools but am kinda overwhelmed by the options (MET and lisp addons etc.)
Im using auto cad 2013 and inventor 2013. Can pipe spools be easily drawn in 2d and 3d in these programs or do i need a 3rd party add on?
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Jul 11, 2013
I was wondering what is everyone's methods for removing people from their background? I have looked into many things but every one has given me issues and I really would like to get cleaner cuts much easier, without me having to spend a very long time trying to just get a simple photo cut out.
I have tried doing Quick Selections and then using Refine Edge; but when I do that I got some glow lines around the person; and everyone says try and use Shift Edge but they fail to notice when you shift the edge to get rid of the glowing lines it goes in on the photo so I'll be missing part of the person like there ear or head. Even if the glow lines aren't too big and I can get rid of them with some time; its a massive pain because it just fills the space between the ear and head because it's a small area; so when it makes the glow lines it fills it completely and turns it entirely rubbish.
I have also tried using a Plugin from Digital Film Tools called Power Mask - Which is essentially masking but making the masking method easier. However not all of the person is fully masked, like some of it isn't the foreground it goes like a lesser opacity of the white to more of a gray and when I switch over to what it then would look like; the person has missing bits or issues because the mask not working fully. Even when I go around twice to make sure it's all masked; it makes some, I don't even know some mist or white glow around them which I have to go around and remove and it's such a pain in the ***.
where I can get complicated photos of people cut out well? like say their hair is blowing in the wind, I want to be able to get a nice clean cut of the hair too; so I need something that works well without there being glow, or missing parts of the person etc, and I don't want to have to spend more than an hour just to get a cut out of one person.
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Apr 25, 2011
how I can load another dll from my main dll, then access functions there, subscribe to events, pass objects back and forth...
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May 16, 2011
Not all drawings present this difficulty, but the ones that do must be passed to another person to set the annotation scale. I am using Civil 3D, 2010. In these drawings, I can try to use the scale popup at the buttom of the editor window either in paper space or model. A Fatal Error is returned. To change the paper space viewport scale, I have to use the zoom XP command to keep from crashing but the annotation scale is another thing. I have not found a work around. I have tried to set the CANNOSCALE variable and I have tried to set it through a lisp script. The drawing does not Error out by setting this variable, but does not actually change the properties of the viewport either. My default setting for ANNOAUTOSCALE is -4 for what it is worth.
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Jun 19, 2013
best way possible to present drawings in a poroduct to the end-user/manufacturer.
all part and assembly .idw's are printed and signed. then scanned and put into one pdf we call technical file. in the pdf, we use bookmarks for sorting into four main categories: purchased, manufacturing, assembly, and fitting kits. in addition we have other things, lik einstalation manual. the minus of this is that, when you are viewing one part, you cannot tell what assembly it is to be included in. in production area, they have small stations with ability to read these pdf's.
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Feb 27, 2011
I've been given a drawing to edit and the creator has long but left the company. I need to explode the block in order to carry out the necessary editing however I cannot explode the block as it is an MInsert Block. I've searched the forums but I haven't found anything relevant. I've gone through the list of blocks present in the drawing to check that the "allow exploding block" tab is checked however there is no block for the whole drawing.
Is there anyway to explode the block and if so how would this be done? These are the blocks properties:
Select objects:
BLOCK REFERENCE Layer: "0"
Space: Model space
Handle = 57a34
Block Name: "*U243"
at point, X=-4237700.3549 Y=-1887128.2335 Z= 0.0000
X scale factor: 1.0000
Y scale factor: 1.0000
rotation angle: 0
Z scale factor: 1.0000
Scale uniformly: No
Allow exploding: Yes
And yes I can realize that allow exploding is set to yes but exploding block to attributes does not work.
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Nov 7, 2013
I was wondering if there is a way for me to setup Autocad so that instead of putting in S 88d20'12" W I could put in something like S88.20.12W so that I don't have to mess with apostrophes or "d." Also, can i do something similar with distance settings? Where instead of saying 5'-6 1/2" I can say 5.6.1/2. I know I could convert the measurements into decimals, but that would waste the time I would be saving with a faster input method.
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Dec 1, 2012
What are the differences, preferences, etc. of saving files (jpgs) with these various methods? The baseline "standard" gives the largest file. Is this preferred?
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Jan 31, 2012
Have you developed a method or set of rules that has made working with large data sets / drawing files an enjoyable process? When working with an extremely large area, Map 3D tends to chug or lock up to the point where now I'm trying to rethink the "Proper" map setup and get opinions on your AutoCAD Map 3D - Mapping Best Practices.
I'm basically looking for comments, recommendations, and/or best practices when defining maps. If you have ever worked with an extremely large dataset or set of shape files and need to import the entities and the query from a drawing file (or maybe even multiple drawings), insert text, insert blocks with attributes. You'll know that this process can be time consuming when working with large datasets. Most staff that work with large data sets are moving to ArcGIS, which makes sense, but I'd rather do all my mapping / GIS with Map 3D.
So maybe setting up multiple drawings with each Layer in a separate drawing makes sense. (30 drawings in a central folder). The Task Pane option is not my preference. I'd prefer all drawings files to be setup with attribute data in-place and stored in a central folder. From there I will proceed with the setup of an extensive Query setup that will generate various maps by altering properties and inserting text from various object data. Essentially loading a saved query that can be ran with updated data to regenerate the labels in some instances.
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May 3, 2012
I want to copy a lot of referenced entities. Is there any way to select more than one item at a time using Copy Nested Objects?
Windows 7 x 64
Nvidia GeForce GTS 450
8 GB Ram
Intel Core i5-2310 @ 2.90 GHz
v. F.107.0.0 AutoCAD Civil 3D 2012 SP1
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Oct 25, 2013
I am placing a lot of suface slope labels in my drawing (as in hundreds). The default settings force you to choose a surface, and then to place it by selecting 1-point /or/ 2 points. The CAD default is the 1-point. Is there a way to change this default to the 2-point so I dont have to change it everytime?
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May 6, 2012
What is the difference between using the Pick Points and Objects selection methods in the Boundary Hatch and Fill dialog box?
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