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Object disapear/don't scale in the Z-AXIS of OPENGL


Object disapear/don't scale in the Z-AXIS of OPENGL

By : user3864811
Date : January 10 2021, 01:49 PM
should help you out Help stamp out GL_PROJECTION abuse.
code :


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IE clear float dont work (for footer) and disapear

IE clear float dont work (for footer) and disapear


By : Kelin Isahappygirl
Date : March 29 2020, 07:55 AM
Does that help the problem is persisten in IE6, reading around i got some information from : Matthew James Taylor talking on is page about KEEPING footer to the bottom.... wich lead to FIX the bu... thanks anyway for trying!
IOS core plot hide 0-100 part of x axis makes y axis disapear

IOS core plot hide 0-100 part of x axis makes y axis disapear


By : user5682594
Date : March 29 2020, 07:55 AM
To fix this issue It's likely not disappeared, rather it could be on the left/right of the screen, assuming that both the axes don't intersect at (0,0). If you enable interaction on plot space (plotSpace.allowsUserInteraction = YES;) you might be able to pinch zoom and take a look around if its there or not.
Also, you can try to make the axes 'fixed' by adding constraints to them:
code :
CPTXYAxisSet *axisSet = (CPTXYAxisSet *) self.hostView.hostedGraph.axisSet;

// Configure x-axis
CPTXYAxis *x = axisSet.xAxis;
CPTXYAxis *y = axisSet.yAxis;

x.axisConstraints = [CPTConstraints constraintWithLowerOffset:50];
y.axisConstraints = [CPTConstraints constraintWithLowerOffset:50];
Object rotating via world axis and not local axis OpenGL

Object rotating via world axis and not local axis OpenGL


By : Andrew Denike
Date : March 29 2020, 07:55 AM
I wish this helpful for you The problem is that you are expressing the axis in world coordinates. What you have to do is:
Get the local to world transformation matrix of the object you want to rotate. Use the inverse of this matrix to convert the world axis (in your example (0,1,0)) to local coordinates. Use the converted axis to compute the rotation as you are doing in the code.
Python matplotlib: How to tick and ticklabel an axis/object independently of the object's scale

Python matplotlib: How to tick and ticklabel an axis/object independently of the object's scale


By : Dakkon
Date : March 29 2020, 07:55 AM
This might help you For setting the ticks on a colorbar you can use cb.set_ticks(bins**(1/3.)). You could also just scale the colormap directly (clr_map((i/400.)**(1./3))).
code :
import matplotlib.pyplot as plt
import matplotlib.colors
import matplotlib.colorbar
import numpy as np

def draw_legend (clr_map):
    """ Draw a color bar legend 
        with a qubic root colormap
    """
    # Version 1, scale boundaries, set ticks to colorbar values
    fig = plt.figure(figsize=(6,4))
    ax_legend = fig.add_axes([0.26, 0.7, 0.48, 0.1], zorder=3)
    ax_legend.set_title("Version 1\nscale boundaries, set ticks to colorbar values")
    grads = np.linspace(0.,1.,400)
    bins = np.linspace(0.,1.,11)
    scheme = [clr_map(i/400.) for i in range(400)]
    cmap = matplotlib.colors.ListedColormap(scheme)
    cb = matplotlib.colorbar.ColorbarBase(ax_legend, cmap=cmap, ticks=bins, boundaries=grads**(1/3.), \
                               orientation='horizontal')   

    cb.set_ticks(bins**(1/3.))
    cb.ax.set_xticklabels(bins**(1/3.), fontsize=10, rotation =45, ha="center")
    cb.draw_all()

    # Version 2, scale colormap, set ticks to arbitrary values
    ax_legend2 = fig.add_axes([0.26, 0.27, 0.48, 0.1], zorder=3)
    ax_legend2.set_title("Version 2\nscale colormap, set ticks to arbitrary values")
    grads = np.linspace(0.,1.,400)
    bins = np.linspace(0.,1.,11)
    scheme = [clr_map((i/400.)**(1./3)) for i in range(400)]
    cmap = matplotlib.colors.ListedColormap(scheme)
    cb = matplotlib.colorbar.ColorbarBase(ax_legend2, cmap=cmap, ticks=bins, 
                               orientation='horizontal')   
    cb.set_ticks(bins)
    cb.draw_all()


draw_legend (plt.cm.jet)
plt.savefig(__file__+".png")
plt.show()
Adjust the grid x-axis scale and y-axis scale in PairGrid method of seaborn

Adjust the grid x-axis scale and y-axis scale in PairGrid method of seaborn


By : Wangi
Date : March 29 2020, 07:55 AM
I hope this helps you . I am struggling with getting the right x-axis and y-axis scale for my PairGrid plot of seaborn. , The bottom plot is produced via the classic style.
code :
from matplotlib import pyplot as plt
plt.style.use("classic")
import seaborn as sns
sns.set()

iris = sns.load_dataset("iris")


x = sns.PairGrid(iris, hue='species')
x = x.map_diag(plt.hist)
x = x.map_offdiag(plt.scatter)
x = x.add_legend()

plt.show()
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