I want to draw different color, this is my code:
// Red
Mesh1->Data->IndexBuffer->Length = 6;
Mesh1->Data->VertexBuffer->Length = 6;
Mesh1->Data->VertexBuffer->Vertices[0] = TPoint3D(0,0,1);
Mesh1->Data->VertexBuffer->Vertices[1] = TPoint3D(1,0,0);
Mesh1->Data->VertexBuffer->Vertices[2] = TPoint3D(0,1,0);
Mesh1->Data->IndexBuffer->Indices[0] = 0;
Mesh1->Data->IndexBuffer->Indices[1] = 1;
Mesh1->Data->IndexBuffer->Indices[2] = 2;
// Green
Mesh1->Data->VertexBuffer->Vertices[3] = TPoint3D(5,0,1);
Mesh1->Data->VertexBuffer->Vertices[4] = TPoint3D(6,0,0);
Mesh1->Data->VertexBuffer->Vertices[5] = TPoint3D(5,1,0);
Mesh1->Data->IndexBuffer->Indices[3] = 3;
Mesh1->Data->IndexBuffer->Indices[4] = 4;
Mesh1->Data->IndexBuffer->Indices[5] = 5;
How could I do? It must use color map? Just like:
http://edn.embarcadero.com/article/42114
And the TMesh object has 4 color properties:
Mesh1->Data->VertexBuffer->Color0
Mesh1->Data->VertexBuffer->Color1
Mesh1->Data->VertexBuffer->Color2
Mesh1->Data->VertexBuffer->Color3
what does it mean? How to use it?
Related
I have been doing printing job with Thermal Printer Image Printing on portable thermal printer for weeks and this is code I got for Image Printing.
public static byte[] GetByteImage(Bitmap bm, int BitmapWidth)
{
BitmapData data = GetGreyScaledBitmapData(bm, BitmapWidth);
BitArray dots = data.Dots;
string t = data.Width.ToString();
byte[] width = BitConverter.GetBytes(data.Width);
int offset = 0;
MemoryStream stream = new MemoryStream();
BinaryWriter bw = new BinaryWriter(stream);
//Line spacing
bw.Write((char)0x1B);
bw.Write('3');
bw.Write((byte)0);
while (offset < data.Height)
{
//Declare printer to print image mode
bw.Write((char)0x1B);
bw.Write('*');
bw.Write((byte)33);
bw.Write(width[0]);
bw.Write(width[1]);
for (int x = 0; x < data.Width; ++x)
{
for (int k = 0; k < 3; ++k)
{
byte slice = 0;
for (int b = 0; b < 8; ++b)
{
int y = (((offset / 8) + k) * 8) + b;
int i = (y * data.Width) + x;
bool v = false;
if (i < dots.Length)
{
v = dots[i];
}
slice |= (byte)((v ? 1 : 0) << (7 - b));
}
bw.Write(slice);
}
}
offset += 24;
bw.Write((char)0x0A);
}
bw.Write((char)0x1B);
bw.Write('3');
bw.Write((byte)0);
bw.Flush();
byte[] bytes = stream.ToArray();
return bytes;
}
public static BitmapData GetGreyScaledBitmapData(Bitmap bmpFileName, double imgsize)
{
using (var bitmap = (Bitmap)(bmpFileName))
{
var threshold = 127;
var index = 0;
double multiplier = imgsize;
double scale = (double)(multiplier / (double)bitmap.Width);
int xheight = (int)(bitmap.Height * scale);
int xwidth = (int)(bitmap.Width * scale);
var dimensions = xwidth * xheight;
var dots = new BitArray(dimensions);
for (var y = 0; y < xheight; y++)
{
for (var x = 0; x < xwidth; x++)
{
var _x = (int)(x / scale);
var _y = (int)(y / scale);
Android.Graphics.Color color = new Android.Graphics.Color(bitmap.GetPixel(_x, _y));
var luminance = (int)(color.R * 0.3 + color.G * 0.59 + color.B * 0.11);
dots[index] = (luminance < threshold);
index++;
}
}
return new BitmapData()
{
Dots = dots,
Height = (int)(bitmap.Height * scale),
Width = (int)(bitmap.Width * scale)
};
}
}
public class BitmapData
{
public BitArray Dots
{
get;
set;
}
public int Height
{
get;
set;
}
public int Width
{
get;
set;
}
}
The problem is, it print very slow and make jerking sound while printing.
Another problem is, the method of image converting to Grey Scale is a bit slow.
And when I test with other apps I found that they have no jerking sound and almost instantly print image after clicked print button.
Is there a way to improve above code so it can print smoothly ?
This is the app I tested Printer Lab - Thermal printer manager
The Thermal Printer I used RPP300 72mm Mobile Printer
The ESC * command you are using prints every 24 dots in height.
Then, as you feel the problem, it will be jerky and slow print.
Please use a combination of GS * and GS / commands to improve it.
Details of their specifications are described on pages 24 to 26 of the Thermal Mobile Printer Command Set Manual.
In Addition:
By the way, I was overlooking another command.
It would be easier for us to create the data that we will send.
However, smooth printing depends on the printer performance and communication line speed.
That command is GS v 0. It is described on pages 32 and 33 of the manual.
The program in this article is a bit image data conversion process for FS q and GS (L / GS 8 L commands, but it can also be used for GS * commands. Please try it.
Convert raster byte[] image data to column Format in C#
Finally got a solution. I was really dumb back then. Just ask your printer manufacturer company for SDK or find SDK from other printer manufacturer.
I am trying to use MPSImageIntegral to calculate the sum of some elements in an MTLTexture. This is what I'm doing:
std::vector<float> integralSumData;
for(int i = 0; i < 10; i++)
integralSumData.push_back((float)i);
MTLTextureDescriptor *textureDescriptor = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatR32Float
width:(integralSumData.size()) height:1 mipmapped:NO];
textureDescriptor.usage = MTLTextureUsageShaderRead | MTLTextureUsageShaderWrite;
id<MTLTexture> texture = [_device newTextureWithDescriptor:textureDescriptor];
// Calculate the number of bytes per row in the image.
NSUInteger bytesPerRow = integralSumData.size() * sizeof(float);
MTLRegion region =
{
{ 0, 0, 0 }, // MTLOrigin
{integralSumData.size(), 1, 1} // MTLSize
};
// Copy the bytes from the data object into the texture
[texture replaceRegion:region
mipmapLevel:0
withBytes:integralSumData.data()
bytesPerRow:bytesPerRow];
MTLTextureDescriptor *textureDescriptor2 = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatR32Float
width:(integralSumData.size()) height:1 mipmapped:NO];
textureDescriptor2.usage = MTLTextureUsageShaderRead | MTLTextureUsageShaderWrite;
id<MTLTexture> outtexture = [_device newTextureWithDescriptor:textureDescriptor2];
// Create a MPS filter.
MPSImageIntegral *integral = [[MPSImageIntegral alloc] initWithDevice: _device];
MPSOffset offset = { 0,0,0};
[integral setOffset:offset];
[integral setEdgeMode:MPSImageEdgeModeZero];
[integral encodeToCommandBuffer:commandBuffer sourceTexture:texture destinationTexture:outtexture];
[commandBuffer commit];
[commandBuffer waitUntilCompleted];
But, when I check my outtexture values, its all zeroes. Am I doing something wrong? Is this a correct way in which I shall use MPSImageIntegral?
I'm using the following code to read values written into the outTexture:
float outData[100];
[outtexture getBytes:outData bytesPerRow:bytesPerRow fromRegion:region mipmapLevel:0];
for(int i = 0; i < 100; i++)
std::cout << outData[i] << "\n";
Thanks
As pointed out by #Matthijis: All I had to do was use an MTLBlitEncoder to make sure I synchronise my MTLTexture before reading it into CPU, and it worked like charm!
I want to compare one bitmap with another bitmap (reference bitmap) and draw all the difference of it in resultant bit map.
Using below code I am able to draw only difference area but not with exact color of it.
Here is my code
Bitmap ResultantBitMap = new Bitmap(bitMap1.Height, bitMap2.Height);
BitmapData bitMap1Data = bitMap1.LockBits(new Rectangle(0, 0, bitMap1.Width, bitMap1.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
BitmapData bitMap2Data = bitMap2.LockBits(new Rectangle(0, 0, bitMap2.Width, bitMap2.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
BitmapData bitMapResultantData = ResultantBitMap.LockBits(new Rectangle(0, 0, ResultantBitMap.Width, ResultantBitMap.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
IntPtr scan0 = bitMap1Data.Scan0;
IntPtr scan02 = bitMap2Data.Scan0;
IntPtr scan0ResImg1 = bitMapResultantData.Scan0;
int bitMap1Stride = bitMap1Data.Stride;
int bitMap2Stride = bitMap2Data.Stride;
int ResultantImageStride = bitMapResultantData.Stride;
for (int y = 0; y < bitMap1.Height; y++)
{
//define the pointers inside the first loop for parallelizing
byte* p = (byte*)scan0.ToPointer();
p += y * bitMap1Stride;
byte* p2 = (byte*)scan02.ToPointer();
p2 += y * bitMap2Stride;
byte* pResImg1 = (byte*)scan0ResImg1.ToPointer();
pResImg1 += y * ResultantImageStride;
for (int x = 0; x < bitMap1.Width; x++)
{
//always get the complete pixel when differences are found
if (Math.Abs(p[0] - p2[0]) >= 20 || Math.Abs(p[1] - p2[1]) >= 20 || Math.Abs(p[2] - p2[2]) >= 20)
{
pResImg1[0] = p2[0];// B
pResImg1[1] = p2[1];//R
pResImg1[2] = p2[2];//G
pResImg1[3] = p2[3];//A (Opacity)
}
p += 4;
p2 += 4;
pResImg1 += 4;
}
}
bitMap1.UnlockBits(bitMap1Data);
bitMap2.UnlockBits(bitMap2Data);
ResultantBitMap.UnlockBits(bitMapResultantData);
ResultantBitMap.Save(#"c:\\abcd\abcd.jpeg");
What I want is the difference image with exact color of the reference image.
It's hard to tell what's going on without knowing what all those library calls and "+= 4" are but, are you sure p and p2 correspond to the first and second images of your diagram?
Also, your "Format32bppArgb" format suggests that [0] corresponds to alpha, not to red. Maybe there's a problem with that, too.
I have the following code:
for (int i = 1; i <= columnArr.Length; i++)
{
sheet.Column(i).AutoFit();
totalWidth += sheet.Column(i).Width;
}
if (image != null)
{
int percent = (int)(totalWidth* 100 / image.Image.Width);
sheet.Row(1).Height = percent * image.Image.Height / 100;
image.SetSize(percent);
}
I want this code should make image (of type ExcelPicture) be as wide as the columns in the relevant part of the sheet (in my case, 3 columns); however, the image is much smaller. However, the row does end up the correct height for the image as shown in the file. How can I fix the width of the image?
You could use the other SetSize method.
SetSize(width, height)
Getting the details right was tricky but this worked for me:
report.Sheet.Column(columnIndex).Width = 10;
report.Sheet.Row(rowIndex).Height = 50;
picture.To.Column = picture.From.Column = columnIndex - 1;
picture.To.Row = picture.From.Row = rowIndex - 1;
picture.SetSize(70, 66);
Note that the column and row index is off by one.
In Magento EE's database, there is a table named enterprise_reward_history in which there exists a column named action. action has IDs of the reward point adjustment action types (e.g. 0: moderator action; 1: redemption; etc.), but I can't seem to find where the definitions are stored. I've mapped out most of them we have from IDs 1 - 11, but I'm still missing 5 and 10, and possibly ones beyond 11.
Does anybody know?
app/code/core/Enterprise/Reward/Model/Reward.php they are constants:
const REWARD_ACTION_ADMIN = 0;
const REWARD_ACTION_ORDER = 1;
const REWARD_ACTION_REGISTER = 2;
const REWARD_ACTION_NEWSLETTER = 3;
const REWARD_ACTION_INVITATION_CUSTOMER = 4;
const REWARD_ACTION_INVITATION_ORDER = 5;
const REWARD_ACTION_REVIEW = 6;
const REWARD_ACTION_TAG = 7;
const REWARD_ACTION_ORDER_EXTRA = 8;
const REWARD_ACTION_CREDITMEMO = 9;
const REWARD_ACTION_SALESRULE = 10;
const REWARD_ACTION_REVERT = 11;