绘制具有正确纵横比的 3D 图

Question

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为了进一步改进，我想知道如何根据容器大小绘制容器框架，以便图形可以更清楚地显示容器未满时还剩下多少备用space？如下图所示：

更新：绘制外部容器框架

def parallelipipedic_frame(xm, xM, ym, yM, zm, zM):
    # defines the coords of each segment followed by None, if the line is
    # discontinuous
    x = [xm, xM, xM, xm, xm, None, xm, xM, xM, xm, xm, None, xm, xm, None, xM, xM,
         None, xM, xM, None, xm, xm]
    y = [ym, ym, yM, yM, ym, None, ym, ym, yM, yM, ym, None, ym, ym, None, ym, ym,
         None, yM, yM, None, yM, yM]
    z = [zm, zm, zm, zm, zm, None, zM, zM, zM, zM, zM, None, zm, zM, None, zm, zM,
         None, zm, zM, None, zm, zM]
    return x, y, z

x, y, z = parallelipipedic_frame(0, 1202.4, 0, 235, 0, 269.7)
# fig = go.Figure(go.Scatter3d(x=x, y=y, z=z, mode="lines", line_width=4))

fig.add_trace(
    go.Scatter3d(
        x=x,
        y=y,
        z=z,
        mode="lines",
        line_color="blue",
        line_width=2,
        hoverinfo="skip",
    )
)

ar = 4
xr = max(d["x"].max()) - min(d["x"].min())
fig.update_layout(
    title={"text": pbin, "y": 0.9, "x": 0.5, "xanchor": "center", "yanchor": "top"},
    margin={"l": 0, "r": 0, "t": 0, "b": 0},
    # autosize=False,
    scene=dict(
        camera=dict(eye=dict(x=2, y=2, z=2)),
        aspectratio={
            **{"x": ar},
            **{
                c: ((max(d[c].max()) - min(d[c].min())) / xr) * ar
                for c in list("yz")
            },
        },
        aspectmode="manual",
    ),
)

Answer 1

要获得逼真的 3d 绘图，您应该在布局中进行设置，scene_aspectmode='data'。

要绘制容器框架，从用于绘制体素的数据中检索，x.min(), x.max(), y.min(), y.max(), z.min(), z.max()，如果 x、y、z 是数组或 min(x) 等，如果它们是列表。然后在你的 plotly 图中添加一个 scatter3d 图，mode="lines" 来绘制容器框架的线条。我检查了它是否有附加到我自己的体素图的部分框架，它有效：

Answer 2

框架由线段组成，线段在两点之间绘制。因此，我不能仅根据您的长度、宽度和高度给出绘制框架的代码。我需要平行六面体顶点的坐标，即 x.min()、x.max()、y.min()、y.max() 等（见上文），表示为 xm , xM, ym, yM, zm, zM:

import plotly.graph_objects as go

def parallelipipedic_frame(xm, xM, ym, yM, zm, zM):
    #defines the coords of each segment followed by None, if the line is 
    discontinuous
    x = [xm, xM, xM, xm, xm, None, xm, xM, xM, xm, xm, None, xm, xm, None, xM, xM, 
         None, xM, xM, None, xm, xm]
    y = [ym, ym, yM, yM, ym, None, ym, ym, yM, yM, ym, None, ym, ym, None, ym, ym, 
         None, yM, yM,None, yM, yM]
    z= [zm, zm, zm, zm, zm, None, zM, zM, zM, zM, zM, None, zm, zM, None, zm, zM, 
        None, zm, zM, None, zm, zM]
    return x, y, z

x, y, z= parallelipipedic_frame(2.3, 4.5, 0,5, 0, 2)
fig=go.Figure(go.Scatter3d(x=x, y=y, z=z, mode="lines", line_width=4))
fig.update_layout(width=600, height=450, font_size=11,  scene_aspectmode="data", 
                  scene_camera_eye=dict (x=1.45, y=1.45, z=1), template="none")
fig.show()

绘制具有正确纵横比的 3D 图

Plotly 3D plot with right aspect ratio

python

plotly

aspect-ratio

bin-packing