Is there a way to create a scoreboard in processing that saves after the sketch is closed and reopened? And is there a way to make this work on android?
Here a little sample using saveStrings():
//random scores
int[] scores = {01,20,40,60,30,25};
void setup(){
//convert and save
String[] s = str(scores);
saveStrings("sco.txt",s);
//load in a different array...
// the path to saved data,
String path = "/Users/vk/Documents/Processing/_forum/saveScore/sco.txt";
int[] loadedScores = int(loadStrings(path));
// ensure they are there...
println(loadedScores);
}
Related
I have troubles detecting digits/numbers in an image with the Windows UWP OCR-Engine from C++/CX.
I need to detect the number in the following Image
I tried it by using the builtin method for Windows 10 UWP: OcrEngine with the following code:
...
cv::Mat croppedImage = imread("digit.png");
WriteableBitmap^ bit1 = ref new WriteableBitmap(croppedImage.cols, croppedImage.rows);
SoftwareBitmap^ bit2 = bit2->CreateCopyFromBuffer(bit1->PixelBuffer, BitmapPixelFormat::Bgra8, bit1->PixelWidth, bit1->PixelHeight);
Windows::Globalization::Language^ l = ref new Windows::Globalization::Language("de");
OcrEngine^ ocrEngine = OcrEngine::TryCreateFromLanguage(l);
IAsyncOperation<OcrResult^>^ ao = ocrEngine->RecognizeAsync(bit2);
task_completion_event<Platform::String^> purchaseCompleted;
auto deviceEnumTask = create_task(ao);
deviceEnumTask.then([this](OcrResult^ result)
{
App1::MainPage::findNumber(result->Text);
});
...
void App1::MainPage::findNumber(Platform::String^ text)
{
//Do something with String
}
My Problem is now, that the inserted string in findNumber is always null. I tried with different pictures as input but always the same result: NULL.
Is there an easier way to get the digits in this images in C++/CX?
What could be the problem? Converting the image?
The problem was the conversion of the WriteableBitmap to a SoftwareBitmap WriteableBitmap^ bit1 = ref new WriteableBitmap(croppedImage.cols, croppedImage.rows);
// Get access to the pixels
IBuffer^ buffer = bit1->PixelBuffer;
unsigned char* dstPixels;
// Obtain IBufferByteAccess
ComPtr<IBufferByteAccess> pBufferByteAccess;
ComPtr<IInspectable> pBuffer((IInspectable*)buffer);
pBuffer.As(&pBufferByteAccess);
// Get pointer to pixel bytes
pBufferByteAccess->Buffer(&dstPixels);
memcpy(dstPixels, croppedImage.data, croppedImage.step.buf[1] * croppedImage.cols*croppedImage.rows);
SoftwareBitmap^ bit2= ref new SoftwareBitmap(BitmapPixelFormat::Bgra8, croppedImage.cols, croppedImage.rows);
//SoftwareBitmap^ bit2 =
bit2->CopyFromBuffer(bit1->PixelBuffer);
As part of a project I am realizing, there are given pdfdocuments which include forms as JPEG Images within A4 pages inside this documents. If have to extract those JPGs out of the PDF. Later on those JPGs are used to build PDF Documents again.
When I simply open up those Documents with any PDFViewer they seem to have no rotation at all, at least it is not visible. So like this icon the have vertical format.
but when I use this sample code to extract the images :
PDDocument doc = PDDocument.load("/path/to/file);
List pages = doc.getDocumentCatalog().getAllPages();
Iterator iter = pages.iterator();
int i = 0;
while (iter.hasNext()) {
PDPage page = (PDPage) iter.next();
System.out.println(page.getRotation());
System.out.println("ROTATION = " + page.getRotation());;
PDResources resources = page.getResources();
Map pageImages = resources.getXObjects();
if (pageImages != null) {
Iterator imageIter = pageImages.keySet().iterator();
while (imageIter.hasNext()) {
String key = (String) imageIter.next();
if(((PDXObjectImage) pageImages.get(key)) instanceof PDXObjectImage){
PDXObjectImage image = (PDXObjectImage) pageImages.get(key);
image.write2file("/path/to/file" + i);
}
i ++;
}
}
}
all extracted JPGs are horizontal format. Further the sysout on the page.rotation tells me that the rotation is set to 270°.
How is that possible? 270 is set, but the PDF is shown vertical (I am no expert on PDF). I even did page.setRotate(0) before extracting the JPGs, but the images still remain horizontally. I read the following Thread telling how to rotate images before drawing them on the pdf. But i need to rotate them before writing them on the filesystem. What is the best way to achieve that?
Unfortunately, I can not attach any of the documents since they are confidential.
I have stumbled on a very annoying problem when setting column widths on a table in Word (using Microsoft Office 15.0 Object Library, VS 2013). If I run the code below without having any breakpoints, the result becomes incorrect (first column width should be 30%), but if I put a breakpoint (e.g.) on line 47, the generated Word file becomes as I want it to be.
The conclusion I make is that when the debugger stops execution, the given column size values are flushed into the data model and the output will be as I want it to be. Without the breakpoint, the merging of cells changes the widths (e.g. the first column becomes 12,5%).
I have searched for some sort of method/function to make the data model adjust to my programmatically given column sizes before the cell merging, with no luck. Anyone out there that can explain why halting on the breakpoint will change the output?
Regards,
Ola
using System;
using System.Linq;
using System.Runtime.InteropServices;
using Microsoft.Office.Interop.Word;
namespace ShowWordProblem
{
class Program
{
private const string WordFileName = #"C:\temp\test.doc";
static void Main(string[] args)
{
var wordApplication = new Application();
wordApplication.Visible = false;
var wordDocument = wordApplication.Documents.Add();
FillDocument(wordDocument);
wordDocument.SaveAs2(WordFileName);
wordDocument.Close();
wordApplication.Quit(Type.Missing, Type.Missing);
Marshal.FinalReleaseComObject(wordApplication);
wordApplication = null;
wordApplication = new Microsoft.Office.Interop.Word.Application();
wordApplication.Visible = true;
wordApplication.Documents.Open(WordFileName);
}
private static void FillDocument(Document wordDocument)
{
Range range = wordDocument.Content.Paragraphs.Add().Range;
var table = range.Tables.Add(range, 5, 8);
table.PreferredWidthType = WdPreferredWidthType.wdPreferredWidthPercent;
table.PreferredWidth = (float)100.0;
table.Columns.PreferredWidthType = WdPreferredWidthType.wdPreferredWidthPercent;
table.Columns.PreferredWidthType = WdPreferredWidthType.wdPreferredWidthPercent;
table.Columns[1].PreferredWidth = 30;
for (int i = 2; i <= 8; i++) table.Columns[i].PreferredWidth = 10;
var widths = table.Columns.OfType<Column>().Select(c => c.Width).ToArray();
MergeGroupHeaderCells(table.Rows[1], 5, 9);
MergeGroupHeaderCells(table.Rows[1], 2, 5);
}
private static void MergeGroupHeaderCells(Row row, int startIndex, int lastIndex)
{
var r = row.Cells[startIndex].Range;
Object cell = WdUnits.wdCell;
Object count = lastIndex - startIndex - 1;
r.MoveEnd(ref cell, ref count);
r.Cells.Merge();
}
}
}
Finally I found a way to force the code to apply the given percentage values to the columns before the merging of the cells, and thereby having the correct widths on all columns.
By adding the following line of code after the last PreferredWidth-assignment:
var info = table.Range.Information[WdInformation.wdWithInTable];
it seems that the given PreferredWidth values are propagated to the columns, and the final rendered word document looks exactly as I want it.
/Ola
Can someone please help me to read and extract the information of a image row wise and column wise?
My effort is to extract the information from the musical stave.
Example musical stave image:
For a image consist with several stave line, I need to extract data stave by stave, sequentially.
Can someone please help me along with code snippets? To make an algorithm to extract row by row?
The information from an image is extracted "row/column wise" no matter what you do; bear in mind that an image is analysed from its pixels, that is, small squares. And it reads all these small squares one after the other.
The difficult part in image processing is dealing with the specific geometrical problems. For example: extracting from this line-by-line reading a complex shape, like one of the staves in your link.
Here you have a small code (written in C#.NET) delivering a simple version of the algorithm you want: it reads row by row or column by column by affecting a single variable (readVertically). I guess that it is a good enough introduction to help you:
private void readImage(string imagePath)
{
Bitmap imageBitMap = (Bitmap)Bitmap.FromFile(imagePath);
bool readVertically = true; //This flag tells where the image will be analysed vertically (true) or horizontally (false)
int firstVarMax = imageBitMap.Width; //Max. X
int secondVarMax = imageBitMap.Height; //Max. Y
if (!readVertically)
{
firstVarMax = imageBitMap.Height;
secondVarMax = imageBitMap.Width;
}
for (int firstVar = 0; firstVar < firstVarMax; ++firstVar)
{
for (int secondVar = 0; secondVar < secondVarMax; ++secondVar)
{
//Color of the given pixel. Here you can do all the actions you wish (e.g., writing these pixels to other file)
if (readVertically)
{
Color pixelColor = imageBitMap.GetPixel(firstVar, secondVar);
}
else
{
Color pixelColor = imageBitMap.GetPixel(secondVar, firstVar);
}
}
}
}
I'm studying Java so I'm pretty new.
I'm creating a simple 'maze' type game using GUI layouts, images, labels ect..
To create my maze layouts I used an array of strings;
mazeLayout[0] = "WWWWWWWWWW";
mazeLayout[1] = "WSSSWWSWWW";
mazeLayout[2] = "WSWSWWSSSW";
mazeLayout[3] = "WSWSWWWWSW";
mazeLayout[4] = "WSWSWWWWSW";
mazeLayout[5] = "WSWSWSSSSW";
mazeLayout[6] = "WSWSWSWWWW";
mazeLayout[7] = "WSWSWSWWWW";
mazeLayout[8] = "WSWSSSWWWW";
mazeLayout[9] = "WWWWWWWWWW";
and then converted this into a 2d array and placed a label with in image icon in it depending on the string being 'W' for wall or 'S' for space. Also the labels are an array, my thoughts behind this was for restricting movement of the player so they can't walk though walls.
int mw = 0;
int mf = 0;
for(int y = 0; y < 10; y++){
for(int x = 0; x < 10; x++){
mazeLayout2d[y][x] = mazeLayout[y].substring(x, x+1);
if (mazeLayout2d[y][x].equals("W")){
lblmazewall[mw] = new JLabel();
mazewall = new ImageIcon("mazewall.png");
lblmazewall[mw].setIcon(mazewall);
pCenter.add(lblmazewall[mw]);
mw++;
pCenter.revalidate();
}
if (mazeLayout2d[y][x].equals("S")){
lblmazefloor[mf] = new JLabel();
mazefloor = new ImageIcon("mazefloor.png");
lblmazefloor[mf].setIcon(mazefloor);
pCenter.add(lblmazefloor[mf]);
mf++;
pCenter.revalidate();
}
}
}
My problem is when i run this line
System.out.println(lblmazewall[x].getLocation()); //x being any number
I always get java.awt.Point[x=0,y=0]
I would like to know how to get the location of each wall label so i can check it against my player movement.
Is this even a valid way to do something like this?
Could someone teach me a more efficient way?
Sorry for my crude snippets and or bad programming
Thankyou Niall.
public Point getLocation()
Due to the asynchronous nature of native event handling, this method can return outdated values (for instance, after several calls of setLocation() in rapid succession). For this reason, the recommended method of obtaining a component's position is within java.awt.event.ComponentListener.componentMoved(), which is called after the operating system has finished moving the component.
The layout might not have used setLocation() internally. So that getLocation() does not return the value as expected.