Density(Heat) scatter plot

PyOSP supports density scatter plot of swath analysis. Unlike swath profile, density scatter plot shows every elevation data on the figure, with heatmap-like coloring of the markers.

Along longitudinal direction

import pyosp

baseline = pyosp.datasets.get_path("homo_baseline.shp") # the path to baseline shapefile
raster = pyosp.datasets.get_path("homo_mount.tif")  # the path to raster file

elev = pyosp.Elev_curv(baseline, raster, width=100,
                       min_elev=0.01,
                       line_stepsize=3, cross_stepsize=None)

Processing: [#########################] 71 of 71 lineSteps

elev.density_scatter()

<AxesSubplot:xlabel='Distance', ylabel='Elevation'>

We can choose other colormaps, or parameters regarding Matplotlib scatter plot.

import matplotlib.pyplot as plt

fig, ax = plt.subplots()
elev.density_scatter(ax=ax, bins=10, cmap="jet", s=10)

<AxesSubplot:xlabel='Distance', ylabel='Elevation'>

Along cross-section

Density scatter can be also plotted for cross-swath analysis.

fig, ax = plt.subplots()
elev.cross_plot(density_scatter=True, ax=ax, start=50, end=100, cmap="jet", s=10)