Dim Gr As Graphics = SomePanel.CreateGraphics()
Gr.Drawline(StartingPoint, EndingPoint)
I want to be able to have a line drawn from point a to b, but be able to rate it 90 degress based on user input so if the user inputs 70 I want it to rotate 30 degree's to simulate a 70 deg relationship to a horizontal line that it touches if that makes any sense. a is starting point b is the user inputs 70 and it draws it at 70 in relationship to the horizontal lineheres the image that i forgot to post above Attached image(s)
I am going to write a standalone code in VB.net that can measure the angle between two faces in a CAD model opened in solidworks. But i am not allowed to use solidworks API or SDK add-in.
i am trying to get the angle of a line in relation to the x axis. The line is being drawn in a picturebox. So its the Upper right quadrant of the cartesian plane ... but its flipped over the x axis.im using this code
a=pt(1).x b=pt(1).y c=pt(2).x d=pt(2).y
z=math.atan2((c-a),(d-b))*(180/math.pi)
The issue is that the line im drawing is almost parallel to the x axis but its returning a value of roughly 90 degrees .It seems like it is giving me the angle in relation to the y axis, but not being super good at the math myself im not exactly sure what to change here.
I Have created a program (see below) that enables you to use you cam. You then draw a line and calculate the angle. The purpose is that I do alot of work with remote control cars and need to acuratley set toe and camber angles, it takes to long with the "old" method So I am creating this little program. ok, so, lets see what I want to do. Well, the first thing I would like to do is draw a line from top to bottom of my picture box dead center of left to right, this is dead center of the cam so the bottom of your item should be posistioned to meet the bottom of the centre line. I then draw a line from bottom to top of the objects angle. I then use the dead center line and the line I drew to calculate the angle.
This is more of a mathematical problem than programming problem.I have created a very basic 3D engine using Visual Basic .Net. It displays lines on the screen with an additional z axis. The engine works, however when part of the line goes below 0 it messes up and starts drawing the line inverted again.
This is how it calculates the points:
y = (point.y / z) + offset.y + camera.y x = (point.x / z) + offset.x + camera.x
Can anyone work out a way to only draw part of the line when it intersects the z=0 axis?
I was wondering if anyone could steer me to any good references to using OpenGL in vb.Net? I wanted to try a simple line drawing test to start off with, and came across many old discussions about using CsGl or the Tao Framework. But I could not get CsGL to import into Net2008 (the Add Reference window simply could not see the DLL that was clearly there when using Windows Explorer). And although I could get Tao to import OK, and found portions of one person's project, I figured that somehow the GL window he was referring to had to first be set up as a GL object (new class?).In addition, all the OpenGL books I have looked at only discuss OGL with respect to some version of C.From what I have gathered, you need a connector between vb.Net and the opengl32.dll libraries and that is what CsGL and Tao are about. But the edumucation resources seem very few.
how to draw in vb.net, and I figured the easiest way is to get my hands dirty and start coding. I figure that the best way to start is by drawing a line on the form. What I'm trying to do is use the graphics.drawline(), but I'm failing. This is what I'm using so far
I have a question about drawing lines. Most of the code snippets I've seen approach drawing a line with the mouse down as the startpoint and the mouse up as the endpoint. But I am trying to draw a line by startpoint as a mouse click and then an endpoint as a mouse click just as you do on a typical cad program.
That's vertical and 1 pixel wide. This is for a mulitiprocessor performance monitor.How do I do it....if you tell me which routine to use... I'll take it from there. I don't think the routine is
System.Drawing.Graphics.DrawLine, because it's looks to an external reference like I'm putting random pixels in.If possible I need to put the pixels in by hand. Besides this line of pixeld is another line of pixels for another epoch. They are not related numrically.
My program is giving the error: "End of statement expected" The red lines are the ones giving errors. I'm trying to draw lines on a picturebox to create a graph
Dim iScale As Single Const Distance = 1000 pictureBoxGraph.ForeColor = QBColor(0)
I am doing a project with graph (VB.NET). I am drawing a line handling dynamic property ( opacity changes based on DB value). I don't know how to change the opacity.
Is it possible when drawing a line to use a binary pattern? Is there a command for this?
Example:
167 is 1010 0111 Draw a line X32 x Y1 would be: 10100111101001111010011110100111 205 is 1100 1101 Draw a line X32 x Y1 would be : 11001101110011011100110111001101
I have been working on an angle calculating program. I have incorprated a feature so you can type the angle and the program draw it. I have since added a few new features and updated everything as such. For the life of me I can't figure out why the draw angle has stoped working. let me just paste some code.
Right, the program isn't so complicated. The important bit is that you type an angle in textbox1 and hit enter. Then what happens is the angle is calculated against a base line (one of the new features is that this base line can be moved from left to right and center.) the problem occurs when you hit enter, the program doesnt actually draw the line for you.
I'm writting program in VB 2010, but I have a problem. I want to draw a temporary line on PictureBox control MouseMove event. That works fine but deleting of that line doesn't work. I tried to draw the white line on the same coordinates (PictureBox's background is white), but won't work.
Here is the code: Private Sub drawing_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles drawing.MouseMove
Basically I want to Position a line from The middle of my screen to the bottom right of my screen. But I need to draw over the game to do this. I dont mind if it flickers as long as its there is all i want. Like this VV
I'm trying to make a very simple Silverlight application.I want it to be full-screen, and I want to draw a line onto a Canvas.My problem is that the .Width and .Height of the canvas never seem to have a valid value. The website shows the canvas at 400x300 pixels or so, and when you click on it, it goes into Fullscreen mode.I want to use the Height and Width to find the usable space of the screen. I've tried adding events (thinking that the canvas wasn't yet ready to be used immediate after the full-screen line of code) but the LayoutChanged and Resized events don't seem to yield anything.
I would like to build a line chart which can redraw or change during a period of time with dynamic data. So that the x, y axis will change if out of range. The graph may be somehow similar to Matlab. I am using vs2005.
Problem drawing dotted path lines, with even dots along the path line.I want to draw a path line that can be any shape (square, round, outline etc), and along this path line I want even dots to appear.
I also want to be able to resize the shape (as in the example attached)This is very easy to do using "DrawPath" and defining points for the path and using a pen defined as dots.The problem I have is I want the dots to be evenly placed along the path, on any shape or size I draw.In the example I have created, I create a square with 4 points and draw a dotted path.There are 2 buttons that allows me to resize the square (larger or smaller) this helps show the problem more clearly.
The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have. point me in the direction I need to go that allows me to draw the dots and give the impression that they are even all along the path, for all shapes and sizes.
In the pictures below if you change the size of the shape, one will have even looking dots, the other will not.
Once again my math fails me, as I can't remember how to do this.
If I have two Lines, line1 and line2, and they both have the same X1 and Y1 properties, but different X2 and Y2 properties, how can I get the angle that is created between these lines.[code]...
I am writing a program that needs the user to input three numbers (i.e. sides of a triangle) and based upon those numbers tell the user if the numbers they enter represent a right triangle or not. how to go about this mathematically and care to offer any suggestions on the syntax of the calculations.
draw individual pixels, without resorting to drawing a line and setting it's length to 1. Is there an actual ability to draw a pixel that is just 1 pixel big?
how would i paint an image onto a form according to the mouse position? i have a sprite and i want the front of the sprite to always face the mouse cursor.
i am having a problem with either my algorithm for restricting an angle between lines. I have a diagram of my problem at the following linK: [URL] In the above diagram, i know the positions of the Points marked on the diagram. The Black lines represent where the lines are currently, i want to move the lines so that they are at right angles to one-an-other (i.e: they are perpendicular) if they are moved to not be so. This is represented by the gray lines.
I have a space ship that I want to turn to a destination angle. Currently it works like 90% of the time, but sometimes, it 'jumps' to the destination angle rather than moving smoothly. Here is my code:
a = System.Math.Sin(.destStoppingAngle + System.Math.PI) b = System.Math.Cos(.destStoppingAngle + System.Math.PI) c = System.Math.Sin(.msngFacing) d = System.Math.Cos(.msngFacing)
I have a form i have made to calculate angles, well, I have now added a check box to reverse the angle and have got it to reverse with no problems. The problem I have is, when I uncheck the checkbox, The line doesnt revert back to normal posistion.Here is the code if someone could point me in the right direction cause I am lost now.
Ok. So I have a program I have made to calculate angles. i have a line for true vertical and I need the program to draw the line at a given angle. Basically, if I put 82 in textbox1, I want the program to calculate the cordinates where that line sits on the X axis, The y axis is always picturebox1.height, So the y axis isn't important here, just the x axis.
What would I do to calculate this angle into a visual graphic?
Does anyone know a trick to angle the header of a datagrid at like 45 degrees? The data is short numeric, but the headers are long text. I'd like to duplicate the feature like in excel to angle the text header. BTW, i'm using VB 2008 Express.
