Tags down


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) {

        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);



    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);

Share : facebook icon twitter icon

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"/>

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();

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.
code :
class Wall():
    def __init__(self, x, y, thotType):

    def draw(self):
        if self.type== "Wall":
        if self.type== "Blank":
for walls in range(len(WallList)):

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.
Related Posts Related Posts :
  • best way to Iterate over a collection and array consecutively
  • How to make Java process to use multiple CPU cores
  • JavaFX 13 create runnable jar "no main manifest attribute"
  • run Java Servlet unit tests on Tomcat server
  • Convert if else statement in Optional.ofNullable().ifPresent() in Java
  • The type com.google.cloud.ServiceOptions$Builder cannot be resolved. It is indirectly referenced from required .class fi
  • Cannot read Excel file with Arabic content using Java
  • Java 13 Text Block *WITHOUT* newlines
  • Time complexity of an algorithm depends on the incremental/decremental step portion, and not the actual input size?
  • java.sql.Connection createArrayOf() returns Unsupported feature
  • Does a Kafka Consumer default batch size?
  • Java runtime memory model --
  • Built-in exception length shorter than expected?
  • code tuning for nested loops for better performance
  • Generate POJO from JSON-LD or RDF to be used with Jackson or GSON
  • How I will display latest image to ImageView Another Activity?
  • Method reference and Generics in Java-8
  • Gradle task assembleDebug failed with exit code 1 (Runtime Exception)
  • How to Import MQTT Paho into Java 'playground'?
  • (Java) Cannot Find Symbol for method
  • Map of generics: read and write
  • Java 11 - Annotation SPI from META-INF/services aren't getting acknowledged
  • Android - Changing app language for all versions of Android
  • bounded type with static method returning String
  • Flutter WebView Crashes on html select
  • Java - cannot convert double to integer while dividing doubles
  • Is there a difference between finding by primary key vs finding by unique column?
  • How to make AnchorPane rounded inside another AnchorPane
  • How do I query Firestore Array Value?
  • Custom Comparator not sorting time
  • java regex to capture any number of periods within a string
  • Spring Singleton means no data sharing at class level?
  • Trying to merge pdfs using iText7 merger, but when I open final merged pdf it says failed to load pdf document
  • Int number = (int)Math.random();
  • Quarkus and Keycloak/OIDC - NullPointerException
  • how to set one value for all elements of data structure in one action(simultaneously)
  • I would like to know how to write Java bytecode that initializes static class variables
  • How do I create a unbalanced binary search tree
  • Why the non-final instance variable of the outer class can be accessed and updated in the anonymous inner class?
  • Writing to a file code causing an endless loop
  • Why I can't show my list from another method?
  • Write in JSON File in a specific position in JAVA
  • From where to load application content
  • Why this nullpointerexception keeps on coming? I have written the error in the end. I have also mentioned the line where
  • ActionListener executes twice on JPanel when called from JFrame
  • How to read PDF from the .jar file
  • Monotonic Functions in Java of Comparables
  • How to fix OOM exception for my apache ignite 2.7.0?
  • How to Parse JSON object partially to Java object
  • Please specify the reason for the given output in following java code
  • How to create fat jar with all dependencies for spring application
  • java.util.Date object created having incorrect time
  • Recommended way to pass configuration to a Kafka client
  • Why does using Unicode in a properties file work but not the actual character even when file.encoding is set?
  • Sending dto with html file in Spring mvc
  • Condition to check if element is present in DOM
  • Serializable Class Containing Sensitive Data
  • How to find the subsequence of number in java in simplest way
  • How to add inner elements from stream to stream?
  • NativeLongByReference contains only 32-bit number on x64 OS
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk