javafx rectangle
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this is less than two point three use line circle and rectangle lets begin with the line shape the line shape lets you draw a straight line between two points its properties are starred x and start y for the starting point coordinates of the line segment and end X and end y for the ending point coordinates now with line shapes you can also have styles including dash lines and line caps lets show you a Java FX program now that uses line shapes this is the line shapes program that creates line shapes and configures their properties lets compile and run this program now and examine its output you can see that the program displays three colored lines on the light yellow background the first line is a solid green line with Square and caps the second line is a solid blue line with rounded end caps and the third line is a dashed red line with square end caps lets show you how these line shapes were created and configured now this statement uses a line constructor to create the first line segment with its endpoints starting at coordinates 2050 and ending at 450 the
stroke color is green with a stroke width of 10 this line constructor creates the second line segment with endpoints 20 80 and 480 the stroke color is blue its stroke width is 10 and the line caps are round the third line segment is created with a line constructor here at coordinates 21 10 and 400 110 with a red color a – array and a stroke width of 5 and here is where we add the three lines to the root scene graph lets return to the call to get stroke – array which makes the red line dashed in this statement the two doubles 20 D and 10 D define whats called a dashing pattern 20 D is the number of pixels for each red dash and the 10 D is used to alternate between the opaque and translucent segments of the – now the get stroke – array method also accepts just one argument lets change it to 20 D and see what happens as you can see you now get a fewer number of dashed lines so remember you may need to experiment with this method and these values to get the –
look that you want the next shape is circle which defines a circle with a center point and radius a circles properties are Center X for the horizontal Center Point Center Y for the vertical Center Point and radius for the radius of the circle lets show you a JavaFX program now that draws circles this is the circle shapes program that creates three circles and configures their properties lets compile and run this program and examine its output you can see that the program displays three circles on a light yellow background lets show you how these circles were created and configured now initially the program defines values for a radius of 40 stroke width of 3 and stroke color of brown the first circle constructor creates a coral circle at coordinates 120 100 and the second constructor creates a yellow circle at 220 100 the third circle constructor creates a pale green circle at coordinates 3 2100 note that all circles have the same y-coordinate of a hundred and different x-coordinates as they are drawn left to right the program invoked setters to configure all the circles with the same radius stroke color and stroke width
and heres where we add the three circles to the route scene graph lets change the radius to 80 now in this program and observe what happens you can see when we run the program that each circle now has doubled its radius and the circles overlap the rectangle shape lets you draw a rectangle at a specific location with a width and a height the default is square corners when the rectangle is drawn but you can specify rounded corners if you want a rectangles properties are the XY coordinates of the upper left corner of the rectangle the width and height of the rectangle arc with the horizontal diameter of the corner arcs and arc height the vertical diameter of the corner arcs lets show you a Java FX program now that draws rectangles heres the rectangle shapes program that creates two rectangles and configures their properties lets compile and run this program and examine its output you can see that the program displays two rectangles on a light yellow background the first rectangle has square corners and the second rectangle is drawn with dashed lines and round corners lets look at how these rectangle shapes
were created and configured now initially the program defines values for a stroke width of 3 arc width and Hark height of 30 and a brown stroke color rectangle constructors create the rectangle shapes the first constructor builds a rectangle at coordinates 40 40 with a width and height of 80 making the rectangle a square with square corners the square has a light gray color with a stroke width of 3 and a brown stroke color the second constructor builds a rectangle at coordinates 180 40 with a width of 220 and a height of 100 to make the corners rounded and the rectangle colored we call these setters for the arc width and arc height and the setter for the fill color these statements set the rectangle stroke color to brown its stroke width to 3 and make the drawn outlined dashes and heres where we add the rectangles to the root scene graph lets change the values for arc width and arc height to be 50 now and recompile when were you run the program you can see what the output shows and that is that the corners of the dashed rectangle are more rounded now
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