List All The Points In Graphics Path?
May 17, 2010how to list all the points in my graphics path and measure the distance between them, preferably in inches but pixels will suffice for now.
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Build The Shortest Path Between Any 2 Points In This List - Develop Some AI Code For A Game ?
Aug 17, 2010I'm trying to develop some AI code for a game I'm creating. I have a list of x,y coords and I need help figuring out what I can use/do to build the shortest path between any 2 points in this list. I would like to build a function that I can pass a list of valid X,Y coords to use when generating the path, start point, end point, and have it return a list of points, which would be the shortest path between the start and end point, using the list of points supplied. I have looked at A* and Dijkstra's, but am having problems implementing the algs in code, as all this seems graph based.
View 3 RepliesInterface And Graphics :: Drawing Dotted Path Lines, With Even Dots Along The Path Line?
Apr 13, 2012Problem 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.
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VS 2010 Using Array Of Points With E.Graphics.DrawLines
Apr 30, 2010I've rewritten my program so it would be more .net friendly (meaning I try to draw in picturebox.Paint event).
I try to use DrawLines using array of points, which are added by user one by one, but I can't figure out how to force my program to only use points that have been set by user and not the whole array.
When I call DrawLines pointing at my array of eg. 10 points and only 5 had been set, I end up with a nice set of lines with the last going to the upper left corner (0,0) and supposedly staying there for 4 more points, which is unacceptable.
I think of using ReDim Preserve each time, but I am not sure if it is the most efficient way to do this.
Anyone can think of something more elegant before I implement this redim monstrosity?
Code To List All Currently Running Process And Get Their Path And List All The Path In Listbox1?
Dec 3, 2010can i know what code that enable me to list all currently running process and get their path and list all the path in listbox1.
View 2 RepliesInterface And Graphics - Plot Points And Joint The Dots
Dec 12, 2011Picture 1 shows an application that I am currently writing that uses the LineShape and OvalShape out of the Visual Basic Power Packs. As I change the index in the part number combo box the A, B & C dimension change to suit the dimension in the text boxes.
Problem is the limited shapes are fine to draw a router template guide, but they are somewhat limited when it comes to drawing more complex shapes like the router bits that make the shapes in Picture 2. Is there a graphic class that would allow me to plot points and joint the dots like you get in kids colouring in books? Or something a little more adept to complex shapes like curves?
I just spotted something called the Pen Class that I might need to look more into, but not knowing the first thing about graphics. Spotted some advice passel gave in another thread to search vb.net gdi+ tutorial and it looks like the Pen Class might have potential, although I am going to have to revisit some math by the looks of things.
Application.Startup Path Points To My Debug Bin When User Executes ?
Jun 29, 2012I sent the application exe to a user to test and they get an unhandled exception error and the details show my personal My Documents Folder/DEBUG path from the project. So I tried to use Application.ExecutablePath but when I release that it points to "My Documents" Folder (not the debug) folder. The file to open is in the same folder as the exe is in but for some reason the error occurs because the application is not looking for the file using the path where the EXE was launched from. Here is my code that relates to the section giving my users a problem:
from the module
Public Class shrd
Public Shared ocSess As cSession
[code]....
How can I get the application to open the file that is in the same folder as the exe when the user launches
GDI: Make Drawn Object Move And Follow Path/Points At Constant Speed?
Nov 13, 2011I've come across a very basic problem which I'm sure has a basic answer.Forgive me but I haven't programmed in years and this just a hobby of mine..My problem is that I need a drawn object (say an ellipse) to move to the cursors location when I click. Imagine an adventure quest style game where you view your character in birds eye view, and it moves according to where you click on the map.I can draw the image fine, and move the image around fine - it's more so the formula I'm using which I'm a little stumped on.I have certain requirements though.
1. I need a timer that constantly updates the drawn object's (lets say character from now on) location. Each tick will essentially be the character taking 1 step towards the cursor's location.2. At the end of each tick of the timer, it'll will invalidate the form/control to invoke the paint event, and of course, the objects location will be be updated.It sounded simple enough to create a linear equation based on the objects original location and the location of the cursor when I click.However, that will not give it a fixed speed.If say for example, the gradient (rise/run) between the cursor location and objects location is very steep, the object's y-velocity will be greater than that of the x-velocity
How To Store A Points In A List
Aug 17, 2010I have a set of points. The connections among them areenerated. How can Draw lines between theconnected points?In the example below, Plist is the connection list among them. How can I store points to PList so that it draw lines?
Public Class Form1
Dim Matt(7, 7) As Integer
Dim NumberofConnections As Integer
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Random List Of Array Points?
Mar 2, 2009I'm trying to generate a list of random points of a 2d array.
ie
(1,0)
(2,1)
(1,2)
(0,0)
(0,1)
....
I need to process each array location, but I would like it to be in a random order.
Error Using Path Class To Create Graphics?
May 3, 2011I get an error when I use the following code to create a path as described in the Mastering Visual Basic 2008 textbook. I am entering in in vb2010
Dim
MyPath As
New
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Draw Vertical Text To A Graphics Path In Down-up Direction?
Oct 8, 2009I have an application that makes a drawing with measurements both horisontal and vertical. I like to get the vertical measurements to be in direction down-up, not up-down direction as StringFormatFlags.DirectionVertical does. All the measuretexts are drawn to a graphics path. Because that path includes all measures at different locations I can´t TransformRotate that path, the text should be rotated before it is passed to the graphics path, or ? It would be so nice if it would be a StringFormatFlags.DirectionVerticalUp to handle it.
View 7 RepliesOffset The Points In A Polygon Without Having To Change Each One Individually The Points Are In An Array?
Apr 20, 2010is there a way to offset the points in a polygon without having to change each one individually the points are in an array
View 2 RepliesForms - Zoom, Resize A Bitmap On Graphics Path And Save?
Jun 23, 2011I am working on watermarking image.
In the below code I load the image to the graphics path using resource image and adding text on it. When I add the image through open file dialog it paints on the form with original size but I need to resize it, add it to the PictureBox, add text to it and give zoom and pan options to it and then I need to save with the original size.
When I resize and when save the image I endi up with a small image.
Here is my code:
Imports System.Collections.ObjectModel
Imports System.Drawing.Drawing2D
Public Class Form1
[Code]....
Interface And Graphics/whats The Difference Between Drawline And Draw Path
Oct 13, 2008Is there any way to have 2d graphics that gets made by user through manual dimensions input be bound to a text box?
Is there any way to take position 1000,600 and make that zero? Can we make graphics by inputting only the next co-ordinate and have the pc automatically draw a line from last point?
Also, whats the difference between drawline and draw path? How can I get the shape to remain on screen when I toggle between pages?
VS 2008 : Stray Graphics Path Image Generated When Label Is Set To Visible = False?
Oct 11, 2009I have a graphics application that uses graphics paths. Code seen below. You can use keyboard characters to display information. When a label is set to visible = false after being turned on for a number of seconds a stray image is generated. The stray images are also sometimes generated when the label is first made visible.
' points p10b, p2b etc are defined elsewhere
Dim GrpPoints As PointF() = {p10b, p2b, p3b, p11b, p5b, p6b, p12b}
GrPath = New GraphicsPath ' 7 path points
GrPath.AddBeziers(GrpPoints)
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I tried stopping the code from running when the label is set to visible = false but the stray image is still generated but just later. If you want more information let me know.The white arrows points to the stray image that is created just after a label that displayed information was set to visible = false
Interface And Graphics :: Popup Selection From Dynamic List?
Aug 8, 2008Is the ContextMenu control strictly to offer choices when the user right-clicks some object, or can it be used to offer choices in general?
In my situation, when a user opens a certain type of file, I want to offer a selection of specific subfiles (line ranges) within said file as choices. The presence of subfiles and their number is variable, so this would be a dynamic situation. (No subfiles: use the whole file; three subfiles: present three choices ...)Would ContextMenu be appropriate, or should I offer a list box or combo box or frame of radio buttons instead?
Get The Points Which Make A Polygon From A Region Which Was Derived From The Polygon's Points?
Jan 31, 2010how can i get the points which make a polygon from a region which was derived from the polygon's points?
View 1 RepliesInterface And Graphics :: Change The Color Of Items Ine A Checkbock List?
Feb 27, 2009I have got a problem. Here is my problem: I have a CheckListbox and in that checklistbox i insert some checkboxes. But those checkboxes should have different colors dependin on the condition.
View 4 RepliesC# - Populate Treeview From A List Of Path?
Jul 20, 2009I'm trying to populate a treeview from a list of folder path, for example:
C:WINDOWSaddins
C:WINDOWSAppPatch
C:WINDOWSAppPatchMUI
C:WINDOWSAppPatchMUI�40C
[code]....
Notice there's no 'C:WINDOWSMicrosoft.NET' or 'C:WINDOWSMicrosoft.NETFramework' in the list.
Get The List Of All Directories And Subdirectories In A Specified Path ?
Aug 29, 2011My directory structure is like below.
Parent directory
---Sub directory 1
---Sub directory 2
------Sub directory2a
------Sub directory2b
---Sub directory 3
I am writing in VB.net to fetch all the directory names (including sub directories in all the levels).However while using directory.getfilesystementries(path) I am getting only the top level sub directories.how to fetch all the subdirectory names of all sub levels?
Retrieving Image Path From List View?
Mar 23, 2010I have manage, to allow user to browse through their files and insert an image path into a local database. The program will then retrieve the image from the image path and will be stored into ImageList. The Listview1 will then add the pictures of Imagelist into the ListView1.Items. Now my question, how can i retrieve back the path of the image when the users click on the selected image from the ListView?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Table = "ItemList"
[Code].....
VS 2010 List Box Of Directory Names--not Full Path?
May 15, 2011I am trying to populate a listbox on form load of a list of directories. I only want to show the directory name, not the full path:
[code]...
The form opens w/ no data in the list box. I played w/ this for a bit and found the strFolderName(i) assignment seems to break the code (make it not work) but I can't figure out why.
Path Of .zip file Has Spaces In It / It's Not Recognizing Path As Valid Path
Aug 22, 2006I have a Access program and I'm using VBA code in the background to run Winunzip using shell command. Well, the path of the .zip file has spaces in it and it's not recongizing the path as a valid path. Is there a another way to tackle this problem besides the shell?I can't us pkzip either. Has you can see I had to use progra~1 instead of Program Files.[code]
View 2 RepliesRendering Graphics Efficiently - DirectX - Graphics Card And Use Of DirectDraw Or OpenGL
Sep 23, 2011We have a GIS application that has some performance issues. It creates and sends an image to a web browser. We start with a Bing Maps imager, add complex polygons (complete with transparent fill), save the finished image as a PNG, and send it to the browser.
The idea has come up that we could possibly install a graphics card and use DirectX or OpenGL to improve performance. I believe this would be the case even though we ultimately generate an image instead of sending the data the the screen. I believe our processes could still make use of the API and the hardware acceleration it provides. Our process is not unlike what CGI film makers do to render individuals frames of a film, though we simply render a single image and send it, as opposed to the hundreds of thousands of images needed for a single CGI film.
So my question is: would a powerful graphics card and use of DirectDraw or OpenGL provide us a worthwhile performance boost? It can take us 20-30 seconds to render a more complex map. Which is a long time to wait on a web page...
Interface And Graphics :: E.Graphics.Drawstring Length Overflow Page?
Nov 19, 2010Im working on a project that needs to print a report of one client.Everything went smooth untill i came across my multiline input text data.When i display it in the PrintPagePreview the text go's outside my page. Even when im printing it only the halve of my text is displayed. I googled and looked everywhere but i can't get a clear fix for it.
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Interface And Graphics :: Passing Bitmaps & Graphics To Subroutines As Arguments
Jan 22, 2011I used to program with Visual Basic 6, so I have alot of old programs that I'm updating, plus I'm learning the new VB2008 methods. I'm writing a program that replaces the old "BitBlit" function which is no longer supported by Visual Basic 2008. It involves three picture boxes, one holds the sprite bitmap, a second holds the mask (silhouette) of the sprite bitmap, and a third has a background image.
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Interface And Graphics :: System.Drawing.Graphics.DrawString On Other Window?
Aug 14, 2009drawing text on a window which is not the current form's window.I remember doing this in Win32 api with getwindowdc(handle) to obtain a DC for the Window, then textout() on the DC.
View 2 RepliesInterface And Graphics :: Creating A Class Holding Some Graphics?
Jan 12, 2011Ok, I want to create a class that will handle a special rectangle graphic.In my form, I want to have two of these special rectangles. So, basically, I need two instances of that class in my form, right?I manage to initialize two, alright. But, how exactly am I supposed tomanage drawing/graphics etc in a class, and the results to be displayed in my form?
View 13 RepliesInterface And Graphics :: Error - Graphics Paths For Designing
Oct 29, 2008Using graphics paths for designing...but am getting an error when trying to add a shape to : _shapelist.add(createshape())
It says : Value of type 'system.drawing.drawing2d.graphicspath' cannot be converted to '1-dimensional array of system.drawing.drawing2d.graphicspath'