Question

比方说，我从ArFragment的命中结果中获得了三个锚点。

锚定锚= hitResult.createAnchor（）;

如何使用Sceneform绘制三角形并应用自定义纹理？

Answer 1

第一步是创建import time from tkinter import * #This is where "Svar" or in English "answer" is being defined. def Kalk(event): if operator.get() == "+": Svar = int(Nummer_1.get()) + int(Nummer_2.get()) display_text.set(str(Svar)) # Update textvariable elif operator.get() == "-": Svar = int(Nummer_1.get()) - int(Nummer_2.get()) display_text.set(str(Svar)) # Update textvariable elif operator.get() == "*": Svar = int(Nummer_1.get()) * int(Nummer_2.get()) display_text.set(str(Svar)) # Update textvariable elif operator.get() == "/": Svar = int(Nummer_1.get()) / int(Nummer_2.get()) display_text.set(str(Svar)) # Update textvariable else: Svar = ("Vennligst velg et av alternativene overfor") display_text.set(Svar) # Update textvariable kalkis = Tk() kalkis.geometry("300x250") kalkis.title("Kalkulator") topFrame = Frame(kalkis) topFrame.grid(row=0) label = Label(topFrame, text="Du kan velge mellom '+', '-', '*'. '/' ") label.grid(row=0) operator = Entry(topFrame) operator.grid(row=1) label_2 = Label(topFrame, text="Skriv inn hvilket tall du vil bruke ") label_2.grid(row=2) Nummer_1 = Entry(topFrame) Nummer_1.grid(row=3) Label_3 = Label(topFrame, text="Skriv inn ditt andre tall ") Label_3.grid(row=4) Nummer_2 = Entry(topFrame) Nummer_2.grid(row=5) # This is where it displays "Svar" which is "answer". display_text = StringVar() # Create a StringVar() to hold the result label_4 = Label(topFrame, textvariable=display_text) # Associate to label label_4.grid(row=6) Refresh = Button(topFrame, text="Enter", command=kalkis) Refresh.bind("<Enter>", Kalk) Refresh.grid(row=6, column=1, sticky=W) kalkis.mainloop()列表，以获取asymboliclink -> /somewhere/else regularFolder .htaccess safe.php的坐标。我们将所有这些添加到列表中：

AnchorNode

然后在Anchor中，如果我们到达三个锚点（或三个坐标），则可以创建三角形。我们将三角形生成为private final List<AnchorNode> anchorsList = new ArrayList<>();：

OnTapArPlaneListener

这是方法ModelRenderable的详细信息：

final Anchor anchor = hitResult.createAnchor();
final AnchorNode anchorNode = new AnchorNode(anchor);

anchorNode.setParent(arFragment.getArSceneView().getScene());
anchorsList.add(anchorNode);

if (anchorsList.size() == 3) {
    final Texture.Sampler sampler = Texture.Sampler.builder()
            .setMinFilter(Texture.Sampler.MinFilter.LINEAR_MIPMAP_LINEAR)
            .setMagFilter(Texture.Sampler.MagFilter.LINEAR)
            .setWrapModeR(Texture.Sampler.WrapMode.REPEAT)
            .setWrapModeS(Texture.Sampler.WrapMode.REPEAT)
            .setWrapModeT(Texture.Sampler.WrapMode.REPEAT)
            .build();

    Texture.builder()
            .setSource(() -> getAssets().open("wall.jpg"))
            .setSampler(sampler)
            .build()
            .thenAccept(texture -> MaterialFactory.makeOpaqueWithTexture(this, texture)
                    .thenAccept(material -> {
                        final Node node = new Node();
                        final ModelRenderable triangle = makeTriangleWithAnchors(anchorsList, material);

                        node.setParent(arFragment.getArSceneView().getScene());
                        node.setRenderable(triangle);
                    })
            );
}

这是我使用前面显示的代码得到的结果（我添加了一些Bugdroids以显示锚点在哪里）：

如何用Sceneform，ARCore绘制多边形？

1 个答案: