I'm trying to make a triangle that plots the point in where the corners show their position in the window and also that the user may drag each corner to a desired position.
I'm new to JavaFX and I'm exploring its 3D capabilities, and in particular the TriangleMesh visualisation.
I have developed a very basic application, based on the Molecule Sample Application provided in the examples, that read a mesh file generated by an external tool (Gmsh) and displays it. Pretty basic.
My problem is that the rendering is not what I expected (see attachement)
My guess is that I got something wrong with the texture coordinates or the triangles orientation.
- I don't what to have textures attached to my meshes. These are 3D meshes used for scientific simulation purposes. I thus have set all texCoords to 0. - I don't control the orientation of my triangles, they are generated by Gmsh. Their orientation is also not interesting for my end users so I would like to display all triangles the same way. I used the meshView.setCullFace(CullFace.NONE); method.
So in the code below I create an instance of my own triangle class and use one of its methods. The thing is I use one of my triangle classes methods in a method other the main method of my main program so I'm thinking it can't access it?
Any way here's the code for my triangle class
import java.util.Scanner; public class QudratullahMommandi_Triangle_06 { Scanner keyboard = new Scanner(System.in); private double side1; private double side2; private double side3;
[Code] ....
and here's the error message
QudratullahMommandi_S_06.java:46: error: cannot find symbol { triangle1.outPut(); ^ symbol: variable triangle1 location: class QudratullahMommandi_S_06 1 error
I'm doing a problem where the area of a triangle is returned (if valid). However, I want to return a message (i.e. 'triangle is not valid) if the triangle is invalid.
I'm not sure how to go about to doing this as my method (called area) will only let me return doubles. Possible to return a string in an else within my area method?
public class MyTriangle { public static void main(String[] args) { //triangle is valid if the sum of any two sides is bigger than the third System.out.println(isValid(3, 4, 5)); System.out.println(area(543, 4, 5));
Is there some way to create compound shapes/paths in JavaFX?
For the record I'm not implying the use of the methods intersect, subtract, or union. These produce other shapes. A compound shape/path is one that has a knockout of some sort. For instance, a circle within a circle, such as in a 2d donut shape. Alternatives do not include a circle with a thick stroke nor an overlayed circle with the background color. Specifically, JavaFX supports the FillRule, in the case of the Path object. However, there doesn't appear to be an "add" method as there was in the Area shape in Swing.
I want to create a button bar that is the same as the confirmation dialog button bar -- so an OK and cancel button layed out in the platform specific way, and with the same styling.
I have made some progress via a hack -- create an alert dialog, and extract the buttons in the dialog using lookupButton, and then put those buttons in a toolbar. But this doesn't necessarily get a toolbar with the buttons in the correct order. If I could get the button bar out of an alert dialog I would have a solution, but I can't see to do that.
I would like to create list of entities which is populated by a search function with the data coming from our REST webservice. However I would like it to be multi-line, with the first line being details from the entity itself and the second line buttons for options that can be performed.
So as an example say my entity is People, the first line would contain columns for first name, last name, gender, DOB, etc. The second line would be buttons for "Edit Person", "Print Person details". With the standard TableView I can't see anyway to alternate between one row of data and another row of buttons.
TabPane and Pagination controls. However, I would like to be able to create a vertical toolbar that controls page or tab display.
Is it possible to create a Pagination with no page control? Or is my guess of sizing the Pagination control so that the lower section is off of the displayed window, thus hiding the page info? Or, is it possible to create a TabPane with panels, but no tabs?
The idea is pretty simple; extend StackPane, add an active property, bind the visible and managed properties of the pane to the active property, and, whenever the active property is changed to true, iterate sibling nodes de-activating any siblings that are also of the type Card.
However, this doesn't work with Scene Builder. While trying to debug, I created an ExtStackPane:
import javafx.collections.ListChangeListener; import javafx.scene.Node; import javafx.scene.layout.StackPane; public class ExtStackPane extends StackPane { { getChildren().addListener((ListChangeListener<Node>) c -> { System.out.println("ExtStackPane children change: " + c.toString()); }); } }
All this does is log list change events. However, I was very surprised by the output when working in Scene Builder. I added both controls to Scene Builder and did the following:
0) Added an ExtStackPane 1) Added a Card to the ExtStackPane 2) Added another Card to the ExtStackPane 3) Added a Label to the first Card 4) Added a Label to the second Card 5) Changed the text of the first Label to Hello 6) Changed the text of the second Label to World 7) Set the first Card to active 8) Set the second Card to active
I get the following output:
1) ExtStackPane children change: { [Card@5b9067b3] added at 0 }
2) ExtStackPane children change: { [Card@6b6328bd] added at 0 } ExtStackPane children change: { [Card@6aca8cc5] added at 1 }
[Code] ....
This is what things look like in Scene Builder:
Does Scene Builder recreate the entire hierarchy every time I make a small change? Here's an application that does the same as the manual steps I performed in Scene Builder:
import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.stage.Stage; public class CardApplication extends Application {
[Code] ....
The output when running the above is:
1) ExtStackPane children change: { [Card@6dfaa767] added at 0 }
2) ExtStackPane children change: { [Card@6aa2c411] added at 1 }
[Code] ....
The behavior is obviously a lot different than when I'm working with the control in Scene Builder. What Scene Builder is doing to change the behavior of my Card control so much? Does my Card control break some rule(s) I'm not aware of?
A triangle is defined by the x- and y- coordinates of its three corner points. Compute the following the following properties of a given triangle: the lengths of all sides, the angles at all corners, the perimeter and the area. The program must prompt a user for the point coordinates. I have created a class Triangle and a class TriangleSimulator, I am stuck and can't figure out why my program won't run correctly.
import java.util.Scanner; public class Triangle { Scanner in = new Scanner(System.in); private int x1; private int x2; private int x3;
class triangle { public static void main (String[] args) { System.out.println("Provide three side lengths - 000 to terminate."); int a = In.getInt(); int b = In.getInt(); int c = In.getInt();
[code]....
My problem is that when I enter 5,2,5 it should be isosceles and acute but it comes out as isosceles and obtuse, and when I type 5,5,5 it comes out equilateral and right. The only one that works is if I enter 3,5,4 it will come out as scalene and right. I been at this for a while and my math looks correct.
I am having trouble getting my main triangle program to run. My teacher gave us a sample program, so I tried running his, and it doesn't run either.
Here is the class:
import java.util.Scanner; public class ShelbyHarms_3_06_Triangle { private double sideA, sideB, sideC; // Instance variables, numbers for area and perimeter static Scanner console = new Scanner(System.in); // Establish keyboard
[Code] .....
My errors for the main program(the class has no errors) are:
helbyHarms_3_06.java:37: error: cannot find symbol theSides.getSides(); ^ symbol: variable theSides location: class ShelbyHarms_3_06
class shape{ public static void main(String [] args){ for(int x =0 ; x<=6;x++){ for(int y =0 ; x > y ; y++){ System.out.print(x); } System.out.print(" "); } } }
I've been having trouble with this code for about a week and I've finally got it down to one error. Here is the code:
import java.util.Scanner; public class Triangle { public static void main (String[] args) { Scanner Console = new Scanner(System.in); System.out.print("Please enter the three lengths of your Triangle: "); double a = console.nextDouble();
[Code] ....
And here is the error:
Triangle.java:30: error: class, interface, or enum expected } // End class ^ 1 error
I am trying to make a program that prints triangle... and I did various test on each method to realise that the problem lies with this segment.When I call this method, nothing prints out, I figure there is something with the loop that I am not realizing.the loop is backwards because it's supposed to have the right side edge parralel (when I try to print it out the spaces do not appear, imagine the x are space...), so as each line is looped the # of spaces diminishes
xxxx* xxx*x* xx*xx* x*xxx* *****
public class test { public static void main(String[] args){ for (int countdown = 5; countdown <= 1; countdown = countdown--){ showNTimes(countdown, ' '); showNTimes(5- countdown, '*'); System.out.println(""); } } public static void showNTimes ( int nbTimes, char carac ) { for ( int i = 1 ; i <= nbTimes ; i = i + 1 ) { System.out.print( carac ); } } }
