geometry for idiots

In the geometry of the drawing and drawing on the blackboard and the paper is not the same, there is no direct use of the eraser or the blackboard wipe to erase the picture, but in the geometric artboard if you draw the wrong picture or do not need a graphic, you can not let it show, so it does not hinder the continuation of the drawing. The following is an example of how to remove a drawn segment in a geometric artboard for detailed introduction.Meth

The geometric sketchpad can be used to reveal the dynamic geometric problems, but the presentation function is relatively inferior to that of PowerPoint. If the two can be combined, their performance will be more satisfying. After a few attempts, I found a way to invoke the geometry artboard file in PowerPoint as follows: 1. First in the geometry of the artboard to make a file such as: Example 1.GSP. 2. S

to rotate a point around another point in a geometry artboard tutorial The specific steps are as follows: Step one assumes fixed point is a, need to rotate point of B, select "Point Tool" in the artboard blank area draw point A, B; the angle of the mark is the ∠MOP that exists in the drawing area, select the line segment tool to draw any ∠mop in the blank of the artboard. Geometry artboard S

Tkinter supports three kinds of geometry managers: Grid Manager, Package Manager, location ManagerTip: Because each manager has its own style of placing widgets, it is best not to use multiple managers in small artifacts in the same container. You can use the framework as a sub-container to get the desired layout.1. Grid Manager#Geometry Manager (1)-----grid Manager" "The grid manager places the widget in e

Tkinter supports three kinds of geometry managers: Grid Manager, Package Manager, location ManagerTip: Because each manager has its own style of placing widgets, it is best not to use multiple managers in small artifacts in the same container. You can use the framework as a sub-container to get the desired layout.1. Grid Manager#Geometry Manager (1)-----grid Manager" "The grid manager places the widget in e

Description of the original:Before using obj-c to develop IOS App, using geometry drawing is the norm, the quality is better no words, because of cross-platform requirements, to Delphi Firemonkey to develop, its cross-platform capability is satisfied (a code and interface can easily cross four platforms), But the mobile platform in the geometry of the graphics, the quality is always unsatisfactory, I have t

My major is computer-aided design (CAD), half of the machine half of the software, "computer graphics" is a required course, but also my favorite course. I'm passionate about using code to fix everything. Almost every algorithm in this textbook has been achieved, this duplication of work, although the significance is not significant, but a lot of harvest, especially discarded for many years of math and back to the head, is the biggest harvest it. Although I have graduated for many years, but eve

In a Word2013 document, a SmartArt graphic has default geometry, such as a rectangle or a circle. The user can change the SmartArt graphic shape to any shape that is available in the word shape library as needed, as described in the following procedure: Step 1th, open the Word2013 document window and select the SmartArt graphic shape that you want to change the geometry. Step 2nd, open the SmartArt Tools/

In the previous blog, I said that geometric data types (dots, the definition of lines, faces, and sets), since geometric data types are extended through the CLR, learning C # knows that there are attributes and methods under an object, and the geometry data types have their properties and methods. The following diagram reflects the class relationships of these geometric objects. Because I myself to C # more familiar (in fact, other languages are no

Problem DescriptionIn Geometry, the problem of track is very interesting. Because in some cases, and the track of point is beautiful curve. For example, with polar coordinate system,ρ=cos3θis like rose,ρ=1−sinθis a cardioid, and so on. Today, there is a simple problem on it which you need to solve.Give a triangleδabc Andab = AC. M is the midpoint of BC. Point P is INΔABC and makes MIN{∠MPB+∠APC,∠MPC+∠APB} maximum. The track of P isγ. Wouldyou Mind Cal

After you create a new artboard file, save it so that you can use the shortcut key Ctrl+s to save it at any time during the production process. This tutorial describes three ways to save Artboards files .The three ways to save artboard files in a geometry artboard are as follows:Method One: Use the Save buttonGeometry artboards Save Artboard filesAfter you create a new artboard file, click the Save button in the File menu, or use the shortcut key "Ctr

0. backgroundThe two corresponding points of two pictures are known, and fundamental Matrix F, how to optimize the coordinates of two points using the polar constraint?1. ConceptHere we introduce Sampson approximation: Sampson approximation (first-order geometry correction)First, we introduce the Sampson modifier:After introducing this error function, we can get the coordinates of the corrected point:of which, J is the Jacobian,Error Term:2. the Jacob

world space with the instance model matrix Float4 worldpostion = MUL (input. Position, modelmatrix ); Float3 worldnormal = MUL (input. Normal, modelmatrix; // Output posion, normal and color Output. Position = MUL (worldpostion, viewprojectionmatrix ); Output. Normal = MUL (worldpostion, viewprojectionmatrix ); Output. Color = instancecolor; // Output other vertex data } The render () method sets the observation and projection matrices, and calls the drawindexedprimitive () meth

Question link: http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1086 ---------------------------------------------------------------------------------------------------------------------------------------------------------- Welcome to tianci Hut: http://user.qzone.qq.com/593830943/main ---------------------------------------------------------------------------------------------------------------------------------------------------------- You can solve a

tutorial on Geometry artboards: How to draw an absolute value function The specific steps are as follows: 1. In the Geometry Artboard window, select drawing--Draw new function. Geometry artboard 2. Input function parsing, such as f (x) =|cosx|, select the "Function" button in the new function window and select the "ABS" function in the Drop-down menu.

Step 1th, open the Word2013 document window and select the SmartArt graphic shape that you want to change the geometry. Step 2nd, open the SmartArt Tools/Formatting Ribbon, and click the Change Shape button in the Shapes group. Select the appropriate geometry in the list of open shapes. Word Home Tip: If you want to restore the default shape after you change the

A SmartArt graphic in Word2010 has a default geometric shape, such as a rectangle or a circle. The user can change the SmartArt graphic shape to any shape that is available in the word shape library as needed, as described in the following procedure: Step 1th, open the Word2010 document window and select the SmartArt graphic shape that you want to change the geometry. Step 2nd, open the SmartArt Tools/Formatting Ribbon, and click the Change Shape bu

The geometry artboard attaches the text to the point -and-order steps For example, to attach text to a point, the specific steps are as follows: Step one opens the geometry artboard, draws point A in the blank area, and uses the Text tool to enter text: Follow point a motion, as shown in the following figure. Geometry artboard Step two select point A a

How to add a custom tool to a geometry artboard 1. First, you need to download a folder with a variety of custom tools, click this link to download directly: Http://pan.baidu.com/s/1kTKQWJl. 2. Place the downloaded tool folder under the Geometry Artboard installation directory, open the geometry artboard software, and click the "Select Tool Folder" in the Custo

ObjectiveIt is estimated that everyone will use CSS shapes in their daily work, but the most commonly used estimation in celestial circles is the Circle (circle), ellipse (ellipse), and various triangular shapes, but you rarely see the use of geometry or multilateral graphics. If you do not understand what is called geometry, then please go to Baidu Encyclopedia, even if we use :after :before these pseudo-e