# Create contour lines for the Hyperbolic Paraboloid using matplotlib. Plot.title('Contour plot for Saddle Surface - Hyperbolic Paraboloid') ZPoints = (XPoints* XPoints) - (YPoints*YPoints) # Populate Z Values (a 5x5 matrix) - For a saddle surface/hyperbolic paraboloid, x^2-y^2=z # X and Y points are from -4 to +4 varying in steps of 2 import numpy as np import matplotlib.pyplot as plt origin 'lower' delta 0.025 x y np.arange(-3.0, 3.01, delta) X, Y np.meshgrid(x, y) Z1 np.exp(-X2 - Y2) Z2 np.exp(-(X - 1)2 - (Y - 1)2) Z (Z1 - Z2) 2 nr, nc Z.shape put NaNs.
Contour plot python example how to#
Here is the python program that plots the contour plots or level curves for a saddle surface which is a hyperbolic paraboloid. How to use the method to create filled contour plots. Plot.clabel(contours, inline=1, fontsize=10) # Create contour lines or level curves using matplotlib.pyplot moduleĬontours = ntour(XPoints, YPoints, ZPoints) ZPoints = (XPoints* XPoints) + (YPoints*YPoints) # Populate Z Values (a 7x7 matrix) - For a circle x^2+y^2=z # X and Y points are from -6 to +6 varying in steps of 2 I can't get it to work with an equal number of x,y and z (temperature) values and all the examples I can find online use a function of x and y to create z or have z values for every point on. The issue I have is specifying the temperature values.
If a level curve is to be drawn for ocean depth where the ocean depth is the same on the places it connects it is called an isobath.ĭrawing a Contour Plot using Python and Matplotlib:.
Remember, a level curve of f(x,y) has the same value z in all the points of x,y that curve passes through A contour line that connects places with the same temperature is called an isotherm.A contour plot in cartography represents levels of equal elevation with respect to a base level.Every contour line in a contour plot is drawn for different value of z, each value a constant.Different level curves produced for the f(x,y) for different values of c - can be put together as a plot, which is called a level curve plot or a contour plot. A level curve of a function f(x,y) is the curve of points (x,y) where f(x,y) is some constant value, on every point of the curve.
They will plot the graph with two predictor variables as x, y on y axis. The matplotlib contour plot is also called as level plots and shows the three dimensional surface on two dimensional plane. Table_id: Table Amon (26 July 2011) 976b7fd1d9e1be31d. Learn Contour plot Python Tutorial with example. Processing_code_information: Last Changed Rev: 428 Last Changed Date: 20. Processed_by: strandwg on mirage0 at 20111021 Tracking_id: 0bf35136-b266-44d2-9078-f3081b83b6adĪcknowledgements: The CESM project is supported by the Nation.įorcing_note: Additional information on the external forc. Institution: NCAR (National Center for Atmospheric Resea.įorcing: Sl GHG Vl SS Ds SA BC MD OC Oz AAĬontact: Gent P. Calculate the skill of a MJO Index as a function of lead timeĭimensions: (bnds: 2, lat: 192, lon: 288, time: 1140).fig, ax plt.subplots() CS ax.contour(X, Y, Z) ax.clabel(CS, inlineTrue, fontsize10) ax. The inline argument to clabel will control whether the labels are draw over the line segments of the contour, removing the lines beneath the label. Calculate ENSO Skill as a Function of Initial Month vs. Create a simple contour plot with labels using default colors.Plotting weekly forecasts for all models.Read a file from an remote OPeNDAP server and make a contour plot of the data.Read a grib file and make a contour plot of the data.Read a netcdf file and make a contour plot of the data.Setting up Pangeo & other Python Packages on the COLA Servers.
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