Labels off map when using CollisionHandler if where_labels=[True]

[enzodbspace]

Describe the bug
When using the demo CollisionHandler function and where_labels=[True], the image is generated much larger and the labels are outside the map area.

To Reproduce

from starplot import MapPlot, Stereographic, CollisionHandler, _
from starplot.styles import PlotStyle, extensions

# Create a custom collision handler that ensures labels are ALWAYS plotted
collision_handler = CollisionHandler(
	# always plot an object's label, even if it collides with other labels or markers:
	plot_on_fail=True,
	# only try plotting object labels once:
	attempts=1,
)

style = PlotStyle().extend(
	extensions.BLUE_LIGHT,
	extensions.MAP,
	{

	},
)

p = MapPlot(
	projection = Stereographic(center_ra= 9.5 * 15, center_dec= -45),
	ra_min = 7 * 15,
	ra_max = 10 * 15,
	dec_min = -70,
	dec_max = -20,
	style = style,
	resolution = 4000,
	scale = 1,
	hide_colliding_labels = False,
	autoscale = False,
	collision_handler=collision_handler,
)

p.constellations()

p.stars(
	where=[_.magnitude <= 7.5],
	where_labels=[False],
)

p.open_clusters(
	where_labels=[True],
)

p.constellation_labels()

p.export("labels-test-1.png", padding = 0, transparent=True)

Expected behavior
Labels printed only within the map area.

Screenshots

Environment Details (please complete the following information):

• Starplot version 0.19.6
• Python version 3.14
• Matplotlib version 3.10.8
• OS: Windows 11 64

[steveberardi]

ah, this is happening because when plotting DSOs as their true size, Starplot isn't checking if the DSO is in bounds first (and instead just relying on the clip path). This will be fairly easy to fix. I'll have it fixed in the next version (v0.20), which should be out in the next few weeks.

thanks for reporting this!