Map Coordinates Of 4 Triangles In A Square To 4 Triangles In A Triangle?
Feb 22, 2010
Given the image below
1. I have updated the image based on feedback from Steven_W so there are 4 triangles in the right hand diagram instead of 3 which makes more sense!
2. update image again to label sub triangles as A, B, C, D in grey
What is the pseudo algorithm for mapping a coordinate (x,y) in the left hand square such that a coordinate (u,v) is produced within the rectangle bounding the triangle on the right so that points are interpolated between the mapping points as illustrated on the diagram? 1 to 4 are equidistant on the triangle from left to right even though my illustration is a bit rough around the edges :)This is to generate a rough and ready panel for the lid of a skybox from the top half a 360 degree panoramic photo.
update 3 based on feedback.The first step appears to be working out which triangle we are in for the left hand diagram based on the (x,y) coordinates.The second steep is to work out the distance along the vertices of that triangle. Then use those distances to get the coordinates on the related triangle in the diagram on the right
update 4 - code to identify triangle in left hand diagram
Public Function TriangleIndex(ByVal x As Integer, ByVal y As Integer, ByVal w as integer, ByVal h as integer) as integer[code].....
I am trying to code some Triangles. But I am getting a not declared error and I am stuck a bit. FYI I have to use OutputTextBox.AppendText in my program.
'First Triangle For i As Integer = 1 To 10 outputTextBox.AppendText("*")
After exporting data using a third party component the data in the excel sheet isn't type correctly. Excel thinks that some values are string while they are numbers and a little green triangle shows up.
We've coded the following to fix this:
For Each objCell As Microsoft.Office.Interop.Excel.Range In objWorkSheetReport.Range(objWorkSheetReport.Cells(1, 1), objWorkSheetReport.Cells(Me.RowCount + 10, Columns.Count + 10)).Cells
[Code].....
This removes all those little green triangles but is really slow.
Is there a faster way to convert a Range of data quickly so the green triangles don't show up?
Public Class form1 Private Sub btnAnswer_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAnswer.Click[code]........
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Sub OnMouseMove(ByVal e As System.Windows.Forms.MouseEventArgs) If e.X > 48 AndAlso e.X < 50 AndAlso e.Y > 397 AndAlso e.Y < 399 Then MessageBox.Show("about 0,0")
Develop a Company Logo application that allows users to draw shapes. The application should provide the user with RadioButtons to allow the selection of the next shape to be drawn. TextBoxes should be provided to allow the user to enter coordinates (X and Y coordinates) of the shape, the width and the height of the shapes. Users should also be able to change the shape�s colour.my question is how to allow the user to enter coordinates (X and Y coordinates) of the shape, the width and the height of the shapes and change the shape�s color from combo box. pro help
below is my code:
Public Class Form1 Dim mycolor As Color Dim mypen As Pen Dim mygraphics As Graphics
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Dim blackPen As New Pen(Color.Black, 3) Dim ptsArray As PointF() = {New PointF(100.0F, 120.0F), New PointF(70.0F, 60.0F), _ New PointF(40.0F, 120.0F), New PointF(100.0F, 120.0F)} e.Graphics.DrawLines(blackPen, ptsArray)
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I know that DX can do that for me :P but I am realy focussing on GDI+ at the moment.
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* * * * * * * * * * * * * * *
Here is the code that I have written for the REGULAR triangle.
Private Sub btnTriangle_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTriangle.Click Dim numstars As Integer
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Here is the code: Public Structure Triangle Shared a As Double = 1 Shared b As Double = 1 Shared c As Double = Triangle.FindC Public angleABC As Double [Code] .....
I am receiving an error in the function. "Triangle.angleABC" is generating :"Reference to a non-shared member requires an object reference". I need to find the hypotenuse for this Triangle. I have tried setting the variable as an object, this does nothing for the error. Also I've tried to use Public in the function and I receive an error stating it needs to be shared. I would like to work the the Structure with out running any functions on it first.
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1 1 1 1 2 1 1 3 3 1 1 4 6 4 1
as you can see the numbers are created by adding the 2 numbers above it starting with 1 at the top
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