Unable to plot image_url with datetime and categorical axis

Community Support
1

image_url can show image if it is numerical x & y; below code will work:

xPos = np.random.randint(1,21,5).tolist()
yPos = np.random.randint(1,21,5).tolist()
p = figure()
p.image_url( url=src['image'], x=xPos, y=yPos, w=30, h=30, anchor="center")

However, below code won’t show the image:

xRange = Range1d(pd.to_datetime('2018-02-12 12:00:00'), pd.to_datetime('2018-02-12 16:59:59'))
yRange = list(src.created_by.unique())

p = figure(title=plotTitle,
            x_range=xRange, y_range=yRange, x_axis_type="datetime")
p.image_url( url='image',
             x='created_on', y='created_by', w=30, h=30, anchor="center",source=source)

Below is my dataframe (src)

Screenshot 2020-06-27 at 9.54.34 PM
Screenshot 2020-06-27 at 9.54.34 PM1014×354 27.4 KB

Any idea how to make it render the image for datetime / categorical axis? Thanks!

2

w and h arguments are in data space, not in pixels.
h=30 with a categorical axis usually means “take up 30 categories”, so you probably want h=1.
w=30 with a datetime axis means “take up 30 milliseconds”. Given your range, you probably want hours and not milliseconds.

3

thank you for your explanation, it works now :clap: