Method and system for producing an improved hiking trail map

• US 5,857,066 A
• Filed: 12/30/1994
• Issued: 01/05/1999
• Est. Priority Date: 12/30/1994
• Status: Expired due to Fees

• Current Assignee: Naturaland Trust
• Original Assignee: Naturaland Trust
• Inventors: Conlon, James B., Wyche, C. Thomas
• Primary Examiner(s): Zimmerman, Mark K.
• Assistant Examiner(s): Buchel, Rudolph
• Application Number:
  US08/367,094
• Time in Patent Office: 1,467 Days
• Field of Search: 395/119-120, 395/127, 395/130, 434/150-153, 340/995
• US Class Current: 345/420
• CPC Class Codes: G06T 17/05 Geographic models

Abstract

A method and system of producing a 3D perspective representation of a hiking trail or the like in two dimensions. Manually-obtained first data indicative of a heading and distance of each approximately linear segment of the course of travel are correlated with second data indicative of a topography of an underlying geographical region. A representation of the course of travel as viewed from perspective may then be selectively produced utilizing the correlated data. Linear segments of the course of travel are shown in this view situated at a relative angle with respect to adjacent linear segments, the angle representative of a direction and slope thereof. As a result, changes in elevation of the course of travel are continuously shown on the perspective two-dimensional representation to facilitate visual appreciation of the difficulty thereof by the traveller.

Claims

1. A method of producing a hiking trail map, said method comprising the steps of:

(a) travelling alone each approximately linear segment of a selected hiking trail and recording information indicative of a heading and distance of each said approximately linear segment to generate manually-obtained first data, said information indicative of a heading and distance of each approximately linear segment being obtained according to one of the following;

(i) measuring said distance of each said approximately linear segment utilizing a manual distance measuring device and measuring said heading thereof utilizing a compass; and

(ii) measuring a respective position of a beginning and an end of each said approximately linear segment utilizing a portable satellite receiver device and calculating said heading and distance therefrom;

(b) entering into a computer device second data indicative of a topography of a geographical area underlying said hiking trail as represented from plan and generating therefrom a vector format image;

(c) entering said first data into said computer device;

(d) correlating said first data and said second data to generate third data indicative of said approximately linear segments of said hiking trail as overlying said geographical area, said correlating step progressively correlating successive of said approximately linear segments beginning with a selected benchmark;

(e) selectively generating from said third data a representation of said hiking trail showing said linear segments situated at a relative angle with respect to adjacent segments, said relative angle representative of a slope and direction thereof, said representation being a perspective representation generated such that parallel features remain substantially parallel therein; and

(f) printing said representation on a sheet-like substrate to produce said hiking trail map,

whereby changes in elevation of said hiking trail are continuously shown on said hiking trail map to facilitate visual appreciation of the difficulty thereof by a hiker.

2. A method as set forth in claim 1, wherein step (b) comprises:

(g) providing a plan-view topographical map of said geographical area underlying said hiking trail;

(h) digitally scanning said plan-view topographical map of said geographical area into a raster format image;

(i) preserving topo lines on said raster format image; and

(j) assigning relative elevations to respective of said topo lines to generate a vector format image.

3. A method as set forth in claim 2, wherein step (b) further comprises generating a wire frame mesh image from said vector format image and step (d) comprises draping said first data onto said wire frame mesh image to correlate it with said second data.

4. A method as set forth in claim 1, wherein said manual distance measuring device utilized to determine said distance of each said approximately linear segment of said hiking trail is a measuring wheel.