Scale Selector

Table of Contents

• Overview
• Accessing the Tool
• Scale Types
• Using the Tool
• Troubleshooting

Overview

The Scale Selector is an intelligent cartographic control system that provides precise management of map visualization scales through predefined zoom levels and dynamic scale bars. This essential tool integrates with Horizon's mapping engine to ensure consistent spatial representation, accurate measurements, and optimal layer visibility across different mapping sessions, delivering professional cartographic standards for effective spatial analysis and map production workflows.

Accessing the Tool

1. Locate Scale Selector at map interface top
2. Current scale displays in selector
3. Click to access scale options

Scale Types

Ratio Scales

• Example: 1:1,000,000
• Meaning: 1 unit on map = 1,000,000 units in reality
• Usage: Technical applications

Verbal Scales

• Example: 1 cm = 10 km
• Purpose: Intuitive understanding
• Usage: General reference

Using the Tool

Scale Selection

1. Click Scale Selector
2. Choose from predefined scales
3. Map adjusts automatically

Scale Considerations

• Large scales show small areas in detail
• Small scales show large areas with less detail
• Consider purpose when selecting scale

Troubleshooting

Issue	Solution
Scale not changing	Refresh page or check active tools
Scale unavailable	Use closest available option
Blank display	Verify layer visibility at scale
Selector unresponsive	Clear browser cache

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