Any Way Can Check Intersection Between Any Two OBJECTS Not Just Rectangles?
Feb 11, 2012
I have made considerable progress on a game I am making, but one of the fundamentals of it relies on collision detection. At the moment, I am using Rectangle.IntersectsWith() to check "collision" between two PictureBoxes, but I don't want everything all square (graphics, etc). So I set about adjusting regions and have ended up with a circular button (from the MSDN example). What I'd like to know is this: Is there any way I can check intersection between any two OBJECTS, not just rectangles? As in, if the rectangle intersects with or is inside the circle in any way then how do I check it programmatically?
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Aug 28, 2008
I want to compare two objects to check if all the properites of both the object have same value or not. for this i need to use the reflection to enumarate through all the properties of an object and check the value of the property. To try the code just i have written a Employee Class having Two Properties EmployeeNo and EmployeeName. I am creating an object of the Employee class and need to write a function that can list the values of all the properties in the class.
[Code]...
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Jan 8, 2009
(VB 2008) ok im making space invaders for a midterm project, that is i made space invaders and then lost my thumb drive, WITHOUT BACKING UP ANY OF MY PROJECTS. point is its due tomorrow and im having trouble with one of my methods. i have a collection that stores all the missles the enemy shoots, then i have a collection that stores each picture box that makes up the barriers. my method is supposed to search thro both collections and check to see if they intersect. if they are both visible they become invisible creating an illusion that they dissappear. i hav organized the rest of my code to ignore the missles and barriers if they are invisible but this part isnt working for some reason.
[Code]...
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Mar 17, 2010
This is my problem...I have created graphicspaths (gp) in Visual Basic...but every gp has a name. So I want to print every name next to the gp. I use GetBounds to get the nearest rectangle around the gp. But like for a circle the name will be quite far away from the gp. Now I want to draw a line from the name to the outline of the gp...can somebody help me with this little part of script?
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Dec 9, 2011
I am using Entity Framwork and have an Entity Customer with a property of[code]...
However I noticed that this code does not get executed when Customer.CustomerStatus Is Nothing.
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Sep 8, 2010
I've written a short function for array intersection and wanted to know why one function is faster than the other.
1)Dim list2() As String 'Assume it has values'Dim list2length As Integer = list2.length
[Code]...
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Mar 31, 2011
Someone once told me VB.net had some built-in function to check if two rectangles intersected. But I cannot find it.
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May 27, 2011
I have an object that looks like follows:
Public Class MyObject
Public Property Key as Intger
get 'Elided for clarity
[code].....
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Oct 11, 2011
I have a list of objects, each with 2 relevant properties: "ID" and "Name". Lets call the list "lstOutcomes".I need to check the list for duplicates (meaning object1.ID = object2.ID, etc.) and set a flag (valid = false, or something) if there is at least one duplicate. Also, it would be nice to send a message to the user mentioning the "Name" of the object, when it fails.I am sure I will need to use the Group By operator to do this, but I am not used to doing that in LINQ, and the examples out there are just not helping me. This article seems to be close to what i need, but not quite and it's in C#.
Here is a starting stab at it...
Dim duplist = _
(From o As objectType In lstOutcomes _
[code]......
help?
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Dec 21, 2010
I have a list of user names (we'll call 'original list') one object is returning. I have a list of user names (we'll call 'filtration list') another object is returning. I am testing a method that returns all of the items from the original list not in the filtration list. Ideally what I want is something like:
Assert.That(returnedList, Has.No.Members.In(filtrationList))
So far the only thing I can do is iterate over the filtrationList and do
Assert.That(returnedList, Has.None.EqualTo(filteredUser))
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Apr 28, 2011
Question: I need to draw pictures as below in C#/VB.NET Draw ishihara-transformations (circles in circle without intersection)?
Note that my problem is NOT drawing circles in C#.
My problems is drawing them without much whitespace and without intersection.
My thought would be using "Orbits" and then draw the circles with center on the "orbit" lines. (with some orbit lines for bigger and some only for smaller circles)
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Jun 4, 2009
I am suing VB 2008 express edition.
I am trying to solve this problem since many days. The problem seems to be rather mathematical, but I faced difficulties dealing with Grids and how to store them using visual basic.
[URL]
In my problem, I have a world of 200 x 200 units divided into 4 x 4 grids (Each of 50 units).
There is a line crosses some areas has the coordinates of Point A (Starting Point) of (XA = 12.43, BA = 159.48) and Point B coordinates (Ending Point) of (XB = 112.95, YB = 20.95).
The question is, how can find the length of (A to C1), (C1 to C2), (C2 to C3), (C3 to C4), (C4 to C5) and finally (C5 to B)?
In addition, how can I indicate the square in which the line is inside?
note that the method should work for all conditions (-ve and +ve line slopes) and for different A and coordinates.
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Mar 8, 2010
I am trying to have different types of rectangles. I thought something like this would work, but Rectangle is not a class.
Public Class xRectangle
Inherits Rectangle
End Class
What I wanted this for was to remove a selection rectangle from an existing drawing. I have all of the objects to draw stored in a list and I am trying to remove the selection rectangle without removing the object it is covering.
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Jun 7, 2011
how to flip rectangles in picturebox?
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Aug 9, 2011
How to flip rectangles in picturebox?
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Feb 7, 2009
How to know if two rectangles intersect. i know for polygon center, length, width and angle. i want to fast algorithm for visual basic 2008.
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Feb 7, 2009
how to know if two rectangles intersect i know for polygon center, length, width and anglei want to fast algorithm for visual basic 2008
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Dec 13, 2011
I just want to draw some lines between the rectangles in vb.net. I used g.drawstring() method to that.
But now, based on a value I just want to change the opacity of the arrow.
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Dec 11, 2009
I have an automated electrical tester, I want to create a type of map file so that way the user can select a subset of devices to test. So basically I want to create a type of grid that the user will be able to highlight specific rectangles in the grid so that way the tester knows to test only those specific locations. To start I want to create a 4X4 grid and each individual rectangle in the grid will contain some coordinate information. Does anyone have a tiny example of how I can draw a 4X4 grid, or any thoughts on the best way to do this? The real final map I will be making will have over 50K devices.
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Feb 2, 2011
Lets say that I've got the coordinates of two Rectangles, they could be right next to each other or have space between them. I need to draw a PolygonHotSpot around the two rectangles (so it will only cover the two rectangles and the space between them). I've come to find that I have to give the coordinates a clockwise order around the entire polygon, rather than around each rectangle (which works fine for a single rectangle).
So given a list of coordinates, is there a way to get them into the order that I need for there to not be any gaps in my PolygonHotSpot?
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Oct 15, 2011
i want to Identify filled rectangles in picture given picture in vb .net.
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Jun 20, 2010
I have a bunch of rectangles simulating players for a football game I'm designing. I want to find out how many "players" are in between two points on the field. I have a start point (a defender trying to locate the ball carrier) and endpoint (the ball carrier). I need the number of other players in between those two points (I have all of their coordinates as well). The more traffic in the defender's field of vision the harder it will be to find the ball.
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May 29, 2010
I have two rectangles; a character and a block. The character is suppose to jump onto the block and then either jump off it or walk off it. I am really getting frustrated with this because I cannot get it to work.
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Apr 13, 2010
I need some help calculating physics after a collision, sort of like rigid body physics but just for rectangles, I don't need them to rotate but only to know the x and y speed they leave each other and the angular velocity etc. the collision with the walls work fine since all I'm doing is reversing the speeds of the rectangles (which is probably the wrong way of doing it) but unfortunately this does not not work for the two rectangles colliding with each other, so can some1 lead me in the right direction as to how I can go about calculating this.
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Nov 17, 2010
My aim is to draw single pixels and rectangles on any web browser.
I ve been thinking alot about this and I think I that there might be 2 ways to do this:
1) Send message api maybe?
2) Direct 3d hook with C++ (Although this is quite complicated)
So my questions are:
Btw the use for it is to detect a certain pixel on the webbrowser and draw on it.
Don't ask why since it is quite complicated and I know also how to use Send message api and I once managed to program a direct 3d hook (but for a 3d game which was based on direct x SDK) with C++ although im not sure if it will work due to webbrowsers dont work with directx.
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Jul 30, 2008
Redrawing rectangles on a Form? I have a problem repainting my form, I'm creating a "Bouncing block" Type of game , the Ball as a PicturBox, the Bar as A Picture Box And the Breakable "Targets" as An Array of Rectangles created in my forms Paint event using "e.Graphics.FillRectangles(Brush, rectsF)". It Looks a little like this:
Top of my Form(in the MainForm class):
Dim Brush As New SolidBrush(Color.Red)
Dim rectsF() As Rectangle
[Code].....
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Mar 1, 2012
I have a DataGridView (not data bound, not editable) that displays a bunch of data. I want to draw rectangles around some of the blocks of cells to set them apart visually. For example, I want to draw a red border around the block of cells from row 3 colum 2 to row 6 column 3 so that there is a red rectangle around the 8 cells.I've found how to paint rectangles around individual cells or rows, but I can't work out how to do it for a block of cells.
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May 16, 2009
I don't really know how to explain this except that I want to draw a bunch of rectangles in a LOOP, then I want each rectangle to be put into an array. To be more specific as alot of people keep telling me to be....I am making a robot, that can move left or right from below the screen, the robot is a rectangle with a barrel in the middle of it. The robot can shoot bullets, but as I understand I have to draw the bullets from the code. So far I have the functions written down to get started and I have tried all the drawing methods, and none of them will do what I want.
vb.net
Public Class Form1
Robot Settings
[code].....
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Jun 19, 2012
I've got a list of System.Drawing.RectangleF objects that all overlap the same RectangleF object.In my picture below, the 3 overlapping rectangles would be the pink, yellow, and red rectangles.My main rectangle in question is the light blue rectangle.
Second Image: I know that with RectangleF objects I can use the Intersect() method that will return me another RectangleF object representing the overlap. But as far as I can tell, this only really works when comparing two rectangles.
My question is: How could I determine the TOTAL area/percentage (i.e. the combined total overlap of the red, yellow, and pink rectangles when compared to the light blue rectangle - but it would need to be smart enough to not count the area in which the red and yellow overlaps twice, and same for the pink and yellow)?
NOTE: The green lines represent the area I'm looking for, just the total area of the blue rectangle that is not visible.
UPDATE: I've added a 2nd image to further demonstrate what I'm looking for. In the second image, the presence of the burgundy rectangle should have no affect on the total percent covered because that area is already covered by the yellow and green rectangles.
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Feb 23, 2010
I am able to get the lines to change their locations, but the dragHandle rectangles won't update - they stay at their starting locations. I would have thought since the points list changed the updateLinehandles() would fix it.
Friend Class Line
#Region " Variables "
Public p1 As Point
Public p2 As Point
[code]....
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