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How to draw Rectangle from Rect and Point?


By : virendra
Date : September 15 2020, 12:00 PM
I wish this help you I have Rect and Point. I want to draw rectangle in android studio. But I don't know how it is possible. I was doing extract text from image and make rectangle on it. Extracting text is successfully done, but don't know the syntax for drawing rectangle. , i would use a Canvas
Add this class to your project
code :
public class MyCanvas extends View {

    private Paint paint;
    private Rect rectangle


    public MyCanvas(Context context) {

        super(context);
        paint = new Paint();

    }



    public MyCanvas(Context context, @Nullable AttributeSet attrs) {

        super(context, attrs);

    }



    public MyCanvas(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {

        super(context, attrs, defStyleAttr);

    }



    @Override

    protected void onDraw(Canvas canvas) {



        canvas.drawRect(rect, paint)

    }





    public void setRect(Rect rect) {

        this.rectangle = rect;

    }



    public Rect getRect() {

        return rectangle;

    }


    add this to your Activity

MyCanvas canvas = new Canvas(this);
canvas.setRect(yourRectangle)
canvas.invalidate()


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svg - draw hollow rectangle(rect donut)?


By : Vick
Date : March 29 2020, 07:55 AM
I wish this helpful for you Here's an example:
code :
<svg viewBox="0 0 400 400" shape-rendering="crispEdges">
    <path d="M10,10h100v100h-100zM20,20v80h80v-80z" fill="yellow" stroke="black"/>
</svg>

AWT Draw Floating-Point Rect


By : maria jhon
Date : March 29 2020, 07:55 AM
seems to work fine You are looking for a java.awt.geom.Rectangle2D.Double. Which allow you to draw at decimal coordinates.
code :
Rectangle2D.Double rect = new Rectangle2D.Double(.5, .5, 4, 6);
Graphics2D g2d = (Graphics2D)g.create();
g2d.draw(rect);

Swift 3 - NSString.draw(in: rect, withAttributes:) -- Text not being drawn at expected point


By : ab123
Date : March 29 2020, 07:55 AM
With these it helps How are you setting atPoint? If you are using the same coordinate space as the screen, that won't work... which is what I suspect is happening.
Suppose your image is 1000 x 2000, and you are showing it in a UIImageView that is 100 x 200. If you tap at x: 50 y: 100 in the view (at the center), and then send that point to your function, it will draw the text at x: 50 y: 100 of the image -- which will be in the upper-left corner, instead of in the center.
code :
    // assume:
    //    View Size is 100 x 200
    //    Image Size is 1000 x 2000
    //    tapPoint is CGPoint(x: 50, y: 100)

    let xFactor = image.size.width / imageView.frame.size.width
    // xFactor now equals 10

    let yFactor = image.size.height / imageView.frame.size.height
    // yFactor now equals 10

    let convertedPoint = CGPoint(x: tapPoint.x * xFactor, y: tapPoint.y * yFactor)

pygame.draw.rect() function called in a class doesn't show the rectangle


By : SVK
Date : March 29 2020, 07:55 AM
this one helps. You've to add a method to the class, which draws the rectangle.
e.g.
code :
class Wall():
    def __init__(self, x, y, thotType):
        self.x=x
        self.y=y
        self.type=thotType
        TypeList.append(self.type)

    def draw(self):
        if self.type== "Wall":
            pygame.draw.rect(root,(0,255,255),(self.x+camX,self.y+camY,mapmultiplier,mapmultiplier),1)
        if self.type== "Blank":
            pygame.draw.rect(root,(32,32,32),(self.x+camX,self.y+camY,mapmultiplier,mapmultiplier))
for walls in range(len(WallList)):
    WallList[walls].draw()

pygame.draw.rect() not drwaing another rectangle


By : Manish Maan
Date : March 29 2020, 07:55 AM
wish of those help The left top corner of the game board is (0,0) and the bottom right corner is (800,500). So, pygame.draw.rect(gameDisplay, yellow, (0,500,110,65)) is trying to draw a rectangle that is starting at the right top of the board and is (110, 65) wide and tall. Your code is drawing two rectangles alright, but beyond the visibility scope.
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